Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ANAPHYSIO > nerve part 2 > Flashcards

nerve part 2 Flashcards

1
Q

most superficial layer of mininges

A

Dura Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

middle layer of mininges

A

Arachnoid Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

inner most meninx

A

Pia Mater

is the inner most mininges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

the space between vertebral column and mininges

A

Subarachnoid Space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

space between protective structures and vertebral column

A

Subdural space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

which matter is rich in myelin?

A

white matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

wider portion of the wing is the anterior/posterior postion. which one ? A or P

A

Posterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

the sensory area of the internal anatomy of the spinal cord is which side?

A

Posterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

the inner most layer of the connective tissue covering of spinal nerves

A

Endoneurium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

the middle layer of the connective tissue covering of spinal nerves

A

Perineurium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

the Outer most layer/covering of the connective tissue covering of spinal nerves

A

Epineurium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

which ramifications is for motor ?

A

Anterior Rami

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

which rami is for sensory

A

Posterior Rami

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

which plexuses are used in physical therapy?

A

Brachial, Lumbar, Sacral Plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The anterior rami of spinal nerves T2–T12 are called what ?

A

intercostal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

this is a network of peripheral nerves

A

Plexuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

known as the thoracic nerves

A

intercostal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It is The area of the skin that provides sensory input to the CNS via one pair of spinal nerve or the trigeminal (V) nerve

A

Dermatome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

It is the area of the skin that provides sensory input to the CNS via one pair of spinal
nerves

A

Dermatomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Skin over the entire body is supplied by _______________ that carry nerve impulses.

A

Somatic Sensory Neurons

Skin over the entire body is supplied by somatic sensory neurons that carry nerve impulses

Somatic sensory neurons are a type of nerve cell that carry information from the body to the central nervous system (CNS). They are part of the somatic nervous system, which is responsible for voluntary movements and sensory processing12.
Somatic sensory neurons can detect different types of stimuli, such as touch, temperature, pain, and body position. They have specialized receptors on their endings that respond to these stimuli and generate electrical signals. These signals travel along the somatic sensory neurons to the spinal cord or the brainstem, where they synapse with other neurons. The signals are then relayed to various regions of the brain, such as the somatosensory cortex, where they are processed and perceived34.
Somatic sensory neurons play an important role in our ability to interact with the environment and perform various tasks. They help us recognize objects, discriminate textures, generate sensory-motor feedback, and exchange social cues3. They also help us avoid or cope with harmful stimuli by triggering reflexes or modulating pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Knowing which spinal cord segments supply each ______ makes it possible to locate damaged regions of the spinal cord.

A

dermatome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What happens If the skin in a particular region is stimulated but the sensation is not perceived ?

A

the nerves supplying that dermatome are probably damaged. In regions where the overlap is considerable, little loss of sensation may result if only one of the nerves supplying the dermatome is damaged.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Skin of scalp posterior and superior to ear of the cervical plexus

A

Lesser occipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Skin anterior, inferior, and over ear, and over parotid glands of the cervical plexus

A

Great auricular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Skin over anterior and lateral aspect of neck of the cervical plexus

A

Transverse cervical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Skin over superior portion of chest and shoulder of the cervical plexus

A

Supraclavicular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Superficial Branches are what kind of branches?

A

Sensory Branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Deep Branches are what kind of branches? Throughout the body

A

They are Largely Motor Branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Lesser occipital, great auricular, transverse cervical and supraclavicular nerves are what type of branches?

A

Superficial Branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Ansa Cervicalis(superior & inferior roots), phrenic and segmental branches are what type of branches?

A

they are Deep Branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

It divides Into superior and inferior roots.

A

Ansa cervicalls

The ansa cervicalis is a loop of nerves that originates from the cervical plexus and innervates some of the muscles in the neck. It has two roots, a superior root and an inferior root, that join together to form the loop. The superior root is formed by fibers from the first and second cervical spinal nerves, while the inferior root is formed by fibers from the second and third cervical spinal nerves. The ansa cervicalis supplies the omohyoid, sternohyoid, and sternothyroid muscles, which are involved in swallowing and stabilizing the larynx. The ansa cervicalis is located within or near the carotid sheath, which contains the carotid artery, internal jugular vein, and vagus nerve1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

The nerve that is responsible for distributing motor impulses to the diaphragm ?

A

Phrenic Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

a type of tract that has a ascending tract?

A

Sensory Tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

a type of tract that has a descending tract?

A

motor tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

type of tract that also delivers motor output

A

motor tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

list me the 5 reflex arc in order

A
  1. Sensory Receptor
  2. Sensory Neuron
  3. Integrating Center - interneurons
  4. Motor Neuron
  5. Effector Organ
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

what type of reflex is the knee jerk ?

A

spinal reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

tracking movement of your eyes as you read this sentence, what type of reflex?

A

cranial reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

a type of reflex for contraction of skeletal muscle

A

somatic reflexes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

sensory receptor, sensory neuron, integrating center, motor neuron, effector and somatic reflex are the five components to what?

A

Reflex arc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

What is the pathway followed by nerve impulses that produce a reflex?

A

reflex arc / reflex circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

It is the largest part of the brain.

A

cerebrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

What is the part of the brain that consists of the thalamus, hypothalamus, and epithalamus.

A

diencephalon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

What part of the brain is continuous with the spinal cord and consists of the medulla oblongata, pons, and midbrain ?

A

brainstem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

The adult brain consists of four major parts…… what are these parts nigga ?

A

brainstem, cerebellum, diencephalon, and cerebrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

It is the forebrain during the development stage of the brain (3 to 4 week embryo)

A

Prosencephalon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

It is the midbrain during the development stage of the brain (3 to 4 week embryo)

A

Mesencephalon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

It is the hindbrain during the development stage of the brain (3 to 4 week embryo)

A

Rhombencephalon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

It is the major part, it is continuous with the spinal cord and consists of the medulla oblongata, pons, and midbrain

A

Brainstem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Brainstem is a major part of the brain and it has 3 parts… what are these parts ?

A

Midbrain
Pond
Medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

It is the major part of the main, posterior to the brainstem

A

Cerebellum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

largest part of the brain

A

Cerebrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

What are the three extensions of the dura mater that separates parts of the brain ?

A

The falx cerebri - separates the two hemispheres of the cerebrum.
The falx cerebelli - separates the two hemispheres of the cerebellum.
The tentorium cerebelli - separates the cerebrum from the cerebellum.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

What is the extension of the dura mater that separates the two hemispheres of the cerebrum ?

A

The falx cerebri

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

What is the extension of the dura mater that separates the two hemispheres of the cerebellum ?

A

The falx cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

What is the extension of the dura mater that separates the cerebrum from the cerebellum ?

A

The tentorium cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

What is the outer protective coverings of the brain ?

A

Dura Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

What is the Middle protective coverings of the brain ?

A

Arachnoid Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

What is the inner protective coverings of the brain ?

A

Pia Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

What is the tight junctions that seal together the endothelial cells and a thick basement membrane that surrounds the capillaries ?

A

Blood brain barrier (BBB)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

What allows certain substances in the blood to enter brain tissue and prevents passage to others ?

A

Blood brain barrier (BBB)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

Lipid-soluble substances such as steroid hormones, alcohol, barbiturates, nicotine, caffeine, and water molecules are ____ when they cross the BBB

A

Lipid-soluble substances such as steroid hormones, alcohol, barbiturates, nicotine, caffeine, and water molecules are transported easily when they cross the BBB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

water-soluble substances, such as most ions, are ____ when they cross the BBB

A

water-soluble substances, such as most ions, are transported very slowly when they cross the BBB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

proteins and most antibiotic drugs are ____ when they cross the BBB

A

They do not pass at all from the blood into brain tissue

Trick question!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

What is a clear, colorless liquid composed primarily of water that protects the brain and spinal cord from chemical and physical injuries ?

A

Cerebrospinal fluid (CSF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

What are the three basic functions of the cerebrospinal fluid that helps maintain homeostasis ?

A
  1. Mechanical protection. CS serves as a shock-absorbing medium that protects the delicate tissues of the brain and spinal cord from jolts that would otherwise cause them to hit the bony walls of the cranial cavity and vertebral canal. The fluid also buoys the brain so that it «floats” in the cranial cavity.
  2. Chemical protection. CSF provides an optimal chemical environment for accurate neuronal signaling. Even slight changes in the ionic composition of CSF within the brain can seriously disrupt production of action potentials and postsynaptic potentials.
  3. Circulation. CSF is a medium for minor exchange of nutrients and waste products between the blood and adjacent nervous tissue.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Which function of CSF provides an optimal chemical environment for accurate neuronal signaling.

A

Chemical protection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

Which function of CSF…….

serves as a shock absorbing medium that protects the delicate tissues of the brain and spinal cord from jolts that would otherwise cause them to hit the bony walls of the cranial cavity and vertebral canal.

The fluid also buoys the brain so that it “floats” in the cranial cavity.

A

Mechanical protection.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

Which function of CSF is a medium for minor exchange of nutrients and waste products between the blood and adjacent nervous tissue ?

A

Circulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

Error skip this idk was sleepy yesterday

Has a total volume of 80-150ml

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

Serves as the mechanical protection, chemical protection and circulation of nutrients and waste products between the blood and adjacent nervous tissue in helping to maintain homeostasis.

A

Cerebrospinal Fluid (CSF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

Cerebrospinal fluid is derived from what ?

A

Blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

T or F, is white blood cells present in CSF

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

What is a network of blood capillaries in the walls of the ventricles in CNS ?

A

choroid plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

Majority of CSF production is from the what ?

A

choroid plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

Is a barrier that regulates passage of a substance between bloodstream and the CSF

A

blood cerebrospinal fluid barrier (blood CSF barrier)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

What barrier is formed mainly by tight junctions of brain capillary endothelial cells ?

A

blood brain barrier (BBB)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

What are the 3 structure of the brainstem?

A

medulla oblongata, pons, and midbrain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

What is the part of the brain between the spinal cord and the diencephalon?

A

Brainstem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

What is the flow of CSF ? (8)

A

Lateral ventricles-> Third ventricle-> Fourth ventricle-> Subarachnoid space-> Arachnoid villi of dural venous sinuses-> Heart and lungs-> Arterial blood-> choroid plexuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

What is the large corticospinal tracts also known as in the brainstem ?

A

Pyramidal tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

In the brainstem, What is known as one of the major specific descending tract ?

A

Corticospinal Tract / Pyramidal Tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q

What refers to the crossing of axons in the brainstem ?

A

Pyramidal decussation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q

What region of the brainstem is particularly important for the decussation of sensory and motor tracts, allowing information to cross from one side of the body to the other?

A

Medulla Oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
85
Q

What is known as the ascending tracts ?

A

Sensory Tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
86
Q

What is known as the descending tracts ?

A

Motor Tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
87
Q

What begins at the foramen magnum and extends to the inferior border of the pons ?

A

Medulla Oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
88
Q

What is known as the lowest part of the brainstem ?

A

Medulla Oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
89
Q

90% of the axons in the left pyramid cross to the right side, and 90% of the axons in the right pyramid cross to the left side. This crossing is called what ?

A

decussation of pyramids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
90
Q

What medulla oblongata nuclei regulates the rate and force of the heartbeat and the diameter of the blood vessels ?

A

cardiovascular center (CVC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
91
Q

What medulla oblongata nuclei adjusts the basic rhythm of breathing ?

A

medullary respiratory center

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
92
Q

What medulla oblongata nuclei causes vomiting, the forcible expulsion of the contents of the upper GI tract through the mouth ?

A

Vomiting Center

gastrointestinal (GI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
93
Q

What medulla oblongata nuclei promotes deglutition of a mass of food that has moved from the oral cavity of the mouth into the pharynx ?

A

Deglutition center

(Swallowing center)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
94
Q

What medulla oblongata nuclei involves spasmodic contraction of breathing muscles that forcefully expel air through the nose and mouth

A

Sneezing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
95
Q

What medulla oblongata nuclei involves a long drawn and deep inhalation and then a strong exhalation that suddenly sends a blast of air through the upper respiratory passages ?

A

Coughing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
96
Q

What medulla oblongata nuclei is caused by spasmodic contractions of the diaphragm, result in the production of a sharp sound on inhalation ?

A

Hiccupping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
97
Q

What medulla oblongata nuclei receives input from the cerebral cortex, red nucleus of the midbrain, and spinal cord ?

A

inferior olivary nucleus

(Sends motor signals)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
98
Q

What medulla oblongata nuclei receives input from the taste buds of the tongue ?

A

Gustatory nucleus

The medulla oblongata is a crucial part of the brainstem, and it contains several important nuclei and centers, as you mentioned:

  1. Cardiovascular Center: Regulates heart rate, blood pressure, and blood vessel diameter to control cardiovascular function.
  2. Medullary Respiratory Center: Controls basic breathing rhythm and rate.
  3. Vomiting Center: Coordinates the reflexes involved in vomiting.
  4. Deglutition Center: Responsible for swallowing, taste, and hearing related to swallowing. It helps coordinate the complex process of swallowing.
  5. Centers for Sneezing, Coughing, Hiccupping: These centers are responsible for the reflex actions of sneezing, coughing, and hiccupping.
  6. Inferior Olivary Nucleus: Involved in motor coordination and learning.
  7. Gustatory Nucleus: Processes taste information.
  8. Cochlear Nucleus: Relays auditory information from the cochlea (part of the inner ear) to higher brain regions for auditory perception.
  9. Vestibular Nucleus: Processes sensory information related to balance and spatial orientation, which comes from the vestibular system in the inner ear.

These nuclei and centers in the medulla oblongata play vital roles in controlling various physiological functions and sensory processing, making the medulla a critical part of the brainstem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
99
Q

What medulla oblongata nuclei receive auditory input ?

A

cochlear nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
100
Q

What medulla oblongata nuclei receive sensory information associated with equilibrium from proprioceptors in the vestibular apparatus of the inner ear ?

A

vestibular nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
101
Q

What are these ? All of these are what ?

• Cardiovascular center
• Medullary respiratory center
• Vomiting center
• Deglutition center - Swalowing / taste / hearing/ Balmie
• Centers for sneezing, coughing, hiccupping
• Inferior olivary nucleus
• Gustatory nucleus
• Cochlear nucleus
• Vestibular nucleus

A

Medulla Oblongata Nuclei

102
Q

What is superior to the medulla and anterior to the cerebellum ?

A

Pons

103
Q

What controls breathing in the pons ?

A

Pontine Respiratory group

(Which consists
The apneustic center [promotes inhalation] &
The pneumotaxic center [regulate/smooth transition])

104
Q

What is also known as the mesencephalon ?

A

Midbrain

105
Q

What extends from the pons to the diencephalon ?

A

Midbrain or mesencephalon

106
Q

What is the prominent structure in the anterior part of the midbrain ?

A

cerebral peduncles

107
Q

What is the term for the prominent structure in the posterior part of the midbrain that contains four rounded elevations ?

A

Tectum / quadrigeminal plate / tectal plate

108
Q

What specific structure in the brainstem is primarily responsible
for reflexes that govern movements of the head, eyes, and trunk in response to visual stimuli ?

A

superior colliculi / superior colliculus (plural)

109
Q

What specific structure in the brainstem is primarily responsible for relaying auditory impulses from the receptors for hearing in the inner ear to the brain?

A

inferior colliculi / inferior colliculus(plural)

110
Q

What are large and darkly pigmented neurons that release dopamine and help control subconscious muscle activities?

A

substantia nigra

111
Q

What loss of these neuron’s can lead to parkinson’s disease ?

A

substantia nigra

112
Q

What has a reddish appearance due to its rich blood supply and the presence of an iron-containing pigment in its neuronal cell bodies, while also serving as a site where axons from the cerebellum and cerebral cortex form synapses and is involved in motor coordination and control of limb movements.

A

red nuclei

113
Q

The broader term of small clusters of neuronal cell bodies in CNS (not the subset)

A

Gray Matter

Both “gray matter” and “nuclei” are related to the central nervous system (CNS), but they refer to slightly different structures:

  1. Gray Matter: Gray matter refers to the regions of the CNS that contain cell bodies of neurons. It can be found in various parts of the brain and spinal cord and is involved in information processing and integration. Gray matter appears gray because it contains a higher concentration of cell bodies and capillaries compared to white matter.
  2. Nuclei: Nuclei are specific, localized clusters of neuronal cell bodies within the CNS. These clusters serve particular functions and are often named based on their location and function. Nuclei are a subset of gray matter and are typically associated with specific tasks or functions.

In summary, gray matter is a broader term that encompasses all regions of the CNS containing cell bodies of neurons, while nuclei are smaller, more specific clusters of cell bodies within the gray matter, each with a distinct role.

114
Q

What does brainstem consists of ? (Not the regions)

A

Gray Matter

115
Q

The broad region where white matter and gray matter exhibit a netlike arrangement is known as what ?

A

reticular formation

116
Q

What consists of sensory axons that project to the cerebral cortex, both directly and through the thalamus ?

A

Reticular activating system (RAS)

117
Q

the most important function of the RAS is what ?

A

consciousness

118
Q

What neural system is primarily responsible for maintaining wakefulness and alertness during arousal?

A

Reticular activating system (RAS)

119
Q

What neural system is essential for sustaining attention and alertness, particularly in tasks requiring focus and vigilance?

A

Reticular Formation (RAS)

120
Q

What neural system is primarily responsible for preventing sensory overload, especially in situations where the brain needs to filter and regulate sensory input effectively?

A

Reticular Formation (RAS)

121
Q

What neural system, when inactivated, leads to the production of sleep ?

A

Reticular Formation (RAS)

122
Q

What part occupies the inferior and posterior aspects of the cranial activity ?

A

Cerebellum

123
Q

What is the central constricted area of the cerebellum ?

A

Vermis

124
Q

What is the major divisions of the cerebellum, specifically the parts often referred to as the “lateral lobes” ?

A

Cerebellar hemispheres

125
Q

What are the lobes of the cerebellum ?

A

• Anterior lobe
• Posterior lobe
• Flocculonodular lobe

126
Q

What are the peduncles of the cerebellum ?

A

• Superior cerebellar peduncle
• Middle cerebellar péduncle
• Inferior cerebellar peduncle

127
Q

What are the primary functions of the cerebellum ? (3)

A

• Balance/equilibrium
• Coordination
• Muscle tone

128
Q

Makes up 80% of the diencephalon

A

Thalamus

129
Q

What joins the right and left halves of the thalamus ?

A

Interthalamic adhesion

130
Q

What are the major nuclei of thalamus ?

A

• Anterior nucleus - emotions and memory
• Medial nuclei - emotions, learning, memory, and cognition
• Lateral group - emotions and help integrate sensory information
• Ventral anterior nucleus - movement control
• Ventral lateral nucleus - movement control
• Ventral posterior nucleus - somatic sensations
• Lateral geniculate nucleus - visual impulses
• Medial geniculate nucleus - auditory impulses
• Intralaminar nuclei - arousal and integration of sensory and motor information
• Midline nucleus - memory and olfaction.
• Reticular nucleus - monitors, filters, and integrates activities of other thalamic nuclei

131
Q

What are the four major regions of the hypothalamus ?

A

• Mamillary region - relay stations for reflexes related to the sense of smell
• Tuberal region - widest part of the hypothalamus
• Supraoptic region - lies superior to the optic chiasm
• Preoptic region - anterior to the supraoptic region, participates in regulating certain autonomic activities

132
Q

What region adjacent to the midbrain, is the most posterior part of the hypothalamus and are relay stations for reflexes related to the sense of smell?

A

mammillary region

133
Q

What region is the widest part of the hypothalamus, includes the dorsomedial nucleus, ventromedial nucleus, and arcuate nucleus

A

tuberal region

134
Q

What region of the hypothalamus lies superior to the optic chiasm ?

A

supraoptic region

135
Q

What region is anterior to the supraoptic region is usually considered part of the hypothalamus because it participates in regulating certain autonomic activities ?

A

preoptic region

136
Q

What is the small part of the diencephalon located inferior to the thalamus ?

A

Hypothalamus

137
Q

What are the 6 major functions of the hypothalamus ?

A

• Control of the ANS
• Production of hormones
• Regulation of emotional and behavioral patterns
• Regulation of eating and drinking
• Control of body temperature
• Regulation of circadian rhythms

(ANS - Autonomic Nervous System)
(Circadian Rythms- patterns of bioactivity/circadian schedule)

138
Q

What is the small region superior and posterior to the thalamus ?

A

Epithalamus

139
Q

What consists(are both part) of the pineal gland and habenular nuclei ?

A

Epithalamus

140
Q

What secretes the hormone melatonin ?

A

Pineal Gland

141
Q

What nuclei is involved especially in emotional responses to olfaction like for example odors such as a loved one’s cologne or Mom’s chocolate chip cookies baking in the oven ?

A

habenular nuclei

142
Q

What are also thought to be the sites of entry into the brain of HIV, the virus that causes AIDS ?

A

circumventricular organs (CVOs)

They can monitor chemical changes in the blood because they lack a blood–brain barrier.
they are part of the diencephalon, they lie in the wall of the third ventricle

143
Q

Why is the thalamus considered a “relay station” in the brain?

A

The thalamus is often referred to as a “relay station” in the brain because it plays a crucial role in transmitting sensory information from various sensory organs, such as the eyes, ears, and skin, to the appropriate areas of the cerebral cortex, which is responsible for processing and interpreting these sensations.

The thalamus receives sensory input and then relays it to specific regions of the cortex, ensuring that sensory information is directed to the right areas for further processing and perception. It acts as a central hub for sensory information, helping to organize and distribute incoming signals to different parts of the brain, making it a vital component of sensory processing and perception.

144
Q

Why is the hypothalamus considered part of both the nervous system and the endocrine system?

A

The hypothalamus is part of both the nervous system and the endocrine system because it plays a dual role. It uses neural signals to regulate various bodily functions and processes within the nervous system, while also controlling the release of hormones from the pituitary gland to regulate other endocrine organs, making it a vital component of the endocrine system. This dual function allows the hypothalamus to influence a wide range of physiological functions in the body.

145
Q

Define a circumventricular organ.

A

A circumventricular organ (CVO) can monitor chemical changes in the blood because they lack a blood brain barrier. allowing it direct access to the bloodstream. CVOs play a crucial role in monitoring and regulating physiological processes by sensing changes in blood composition and relaying this information to the brain for appropriate responses. They are involved in functions like regulating thirst, monitoring blood pressure, and responding to hormonal signals.

146
Q

the cortical region rolls and folds on itself. What are the folds called ?

A

gyri

147
Q

What is a region of gray matter that forms the outer rim/layer of the cerebrum ?

A

Cerebral Cortex

148
Q

What are the shallower grooves between folds of the brain ?

A

Sulci

149
Q

What is a broad band of white matter that internally connects the two cerebral hemispheres ?

A

Corpus callosum

150
Q

What are the lobes of the cerebrum ?

A

• Frontal Lobe: Motor functions, intellect, decision-making, personality, and emotion.
• Parietal Lobe: Sensory processing (touch, temperature, spatial awareness).
• Temporal Lobe: Auditory processing, language comprehension, memory, and some aspects of emotion.
• Occipital Lobe: Visual processing.
• Insula/Insular Lobe: Emotions, empathy, and autonomic nervous system regulation.

151
Q

Which lobe of the cerebrum is associated with motor functions, intellect, decision making, personality, and emotion ?

A

Frontal Lobe

152
Q

Which lobe of the cerebrum is associated with sensory processing (touch, temperature, spatial awareness) ?

A

Parietal Lobe

153
Q

Which lobe of the cerebrum is associated with Auditory processing, language comprehension, hearing, memory, and some aspects of emotion ?

A

Temporal Lobe

154
Q

Which lobe of the cerebrum is associated with Visual processing ?

A

Occipital lobe

  1. Frontal Lobe: The frontal lobe is associated with higher cognitive functions, including reasoning, planning, problem-solving, decision-making, and personality. It also plays a role in motor control and contains the primary motor cortex responsible for voluntary muscle movements.
  2. Parietal Lobe: The parietal lobe processes sensory information from the body, including touch, temperature, and pain. It’s involved in spatial perception, spatial awareness, and the integration of sensory information.
  3. Temporal Lobe: The temporal lobe is important for auditory processing, language comprehension, and memory (particularly long-term memory). It houses the primary auditory cortex and is involved in the recognition of faces and objects.
  4. Occipital Lobe: As mentioned earlier, the occipital lobe is primarily responsible for visual processing, including the reception and interpretation of visual stimuli from the eyes.

These lobes work together and in conjunction with other brain regions to perform various complex cognitive and sensory functions, allowing us to perceive, understand, and interact with our environment.

155
Q

Which lobe of the cerebrum is associated with Emotions, empathy, and autonomic nervous system regulation ?

A

Insula/Insular Lobe

156
Q

What type of tract contain axons that conduct nerve impulses from gyri in one cerebral hemisphere to corresponding gyri in the other cerebral hemisphere ?

A

Commissural tracts/fibers - connect
Left & right hemisphere

157
Q

Which tract contain axons that conduct nerve impulses between gyri in the same hemisphere ?

A

Association tracts/fibers

connects with the same hemisphere

158
Q

What is deep within each cerebral hemisphere are three nuclei (masses of gray matter) that are collectively termed as what ?

A

Basal Nuclei/Ganglia

159
Q

Which tract contain axons that conduct nerve impulses from the cerebrum to lower parts of the CNS or from lower parts of the CNS to the cerebrum.

A

Projection tracts/fibers

160
Q

What are the main nuclei of basal nuclei/ganglia ? (3)

A

• Globus pallidus
• Putamen
• Caudate nucleus

161
Q

What are the 2 main accessory structures of the basal ganglia/nuclei ?

A

• Substantia nigra
• Subthalamic nucleus

162
Q

What is the ring of structures on the inner border of the cerebrum and floor of the diencephalon ?

A

Limbic System

163
Q

What are the main components of the lymbic system ? (7)

A

• Limbic lobe
• Dentate gyrus
• Amygdala
• Septal nuclei
• Mamillary bodies
• Olfactory bulbs
• Fornix, stria terminalis, stria medullaris, medial forebrain bundle, and mammillothalamic tract

164
Q

What is a rim of cerebral cortex on the medial surface of each hemisphere which includes the cingulate gyrus and parahippocampal gyrus?

A

Limbic lobe

165
Q

What structure lies between the hippocampus and parahippocampal gyrus in the limbic system

A

Dentate gyrus

166
Q

What structure is composed of several groups of neurons located close to the tail of the caudate nucleus in the limbic system ?

A

amygdala

167
Q

What structure is located within the septal area formed by the impairment. One pi regions under the corpus callosum and the paraterminal gyrus

A

septal nuclei

168
Q

What structure of the hypothalamus are two round masses brain that respond close to the midline near the cerebral peduncles ?

A

mammillary bodies

169
Q

What structure are flattened bodies of the olfactory pathway that rest on the cribriform plate ?

A

olfactory bulbs

170
Q

What structure are linked by bundles of interconnecting myelinated axons ? (5)

A

fornix, stria terminalis, stria medullaris, medial forebrain bundle, and mammillothalamic tract

171
Q

What are the main functions of the limbic system ? (3)

A

• Plays a primary role in a range of emotions, including pain, pleasure, docility, affection, and anger
• Functions in the sexual drive
• Also involved in olfaction and memory

172
Q

Damaged limbic system may result to what?

A

Kluver-Bucy Syndrome

  1. Hyperphagia: An intense and abnormal appetite, often leading to overeating.
    1. Hyperorality: An increased tendency to put objects in the mouth.
    2. Docility: A loss of fear and aggression, leading to overly friendly or inappropriate social behaviors.
    3. Visual Agnosia: Difficulty in recognizing and interpreting visual stimuli.
    4. Hypersexuality: An increase in sexual behaviors and interests.
    5. Visual Disturbances: Changes in visual perception, such as the tendency to examine objects visually in detail.
  2. Sleep disturbance
173
Q

What area of the cortex receive sensory information and are involved in perception, conscious awareness of sensation ?

A

Sensory areas

174
Q

What functional organization of the cortex control the execution of voluntary movements ?

A

Motor areas

175
Q

What functional organization of the cortex deal with more complex integrative functions such as memory, emotions, reasoning, will, judgment, personality traits, and intelligence

A

Association areas

176
Q

What is 41,42 in K. Brodmann’s map ?

A

Primary auditory area

177
Q

What is 4 in K. Brodmann’s map ?

A

Primary motor area
(precentral gyrus)

178
Q

What is 22 in K. Brodmann’s map ?

A

Auditory association area

179
Q

What is 17 in K. Brodmann’s map ? Not part daw so skip 🤔🤔🤔🤔

A

Occipital Lobe

180
Q

What is 18,19 in K. Brodmann’s map ?

A

Visual association area

181
Q

Not part of test skip this 😟What is 5 in K. Brodmann’s map ?

A

Somatosensory association area

182
Q

What is 1 in K. Brodmann’s map ?

A

Primary Somatosensory area (postcentral gyrus)

183
Q

Which hemisphere receives somatic sensory signals from, and controls muscles on, left side of body ?

A

Right hemisphere

184
Q

Which hemisphere has musical and artistic awareness functions ?

A

Right hemisphere

185
Q

Which hemisphere has space and pattern perception ?

A

Right hemisphere

186
Q

Which hemisphere has recognition of faces and emotional content of facial expressions ?

A

Right hemisphere

187
Q

Which hemisphere is generating emotional content of language ?

A

Right hemisphere

188
Q

Which hemisphere is generating mental images to compare spatial relationships ?

A

Right hemisphere

189
Q

Which hemisphere is identifying and discriminating among odors ?

A

Right hemisphere

190
Q

Patients with damage in _____ hemisphere regions that correspond to Broca’s

A

right hemisphere

191
Q

Which hemisphere receives somatic sensory signals from, and controls muscles on, right side of body ?

A

Left hemisphere

192
Q

Which hemisphere is capable of Reasoning ?

A

Left hemisphere

193
Q

Which hemisphere has numerical and scientific skills ?

A

Left hemisphere

194
Q

Which hemisphere has the ability to use and understand sign language ?

A

Left hemisphere

195
Q

Which hemisphere is used in spoken and written language ?

A

Left hemisphere

196
Q

Persons with damage in the ______ hemisphere often exhibit aphasia.

A

Left hemisphere

197
Q

What is the mneminic for cranial nerves ?

A

Oh !
Oh !
Oh !
to
touch……..
And
feel……….
various
girls
vagina
AH !
heaven…….

198
Q

What Is the meaning of

Oh !
Oh !
Oh !
to
touch……..
and
feel……….
various
girls
vagina
AH !
heaven…….

A
  1. Olfactory Nerve
  2. Optic Nerve
  3. Oculomotor Nerve
  4. Trochlear Nerve
  5. Trigeminal Nerve
  6. Abducens Nerve
  7. Facial Nerve
  8. Vestibulocochlear Nerve
  9. Glossopharyngeal Nerve
  10. Vagus Nerve
  11. Accessory Nerve
  12. Hypoglossal Nerve
199
Q

What part of the nervous system regulates cardiac muscle, smooth muscle, and glands ?

A

The Autonomic Nervous Sustem

200
Q

What system consists of autonomic motor neurons ?

A

The Autonomic Nervous System

201
Q

What system operates without conscious control ?

A

The Autonomic Nervous System

202
Q

What does the autonomic nervous system consists of ? (3)

A

• Sympathetic Nervous System
• Parasympathetic Nervous System
• Enteric Nervous System

203
Q

What plays a crucial role in regulating the digestive system and is sometimes referred to as the “second brain” of the gut?

A

Enteric Nervous System

204
Q

What system that promotes the fight or flight response ?

A

Sympathetic Nervous System

which prepares the body for emergency situations

205
Q

What system enhances rest and digest activities ?

A

Parasympathetic Nervous System

conserve and restore body energy during times of rest or digesting a meal

206
Q

What system has a neurotransmitter that does preganglionic neurons release acetylcholine (ACh), which is excitatory and stimulates postganglionic neurons; most postganglionic neurons release norepinephrine (NE); postganglionic neurons that innervate most sweat glands and some blood vessels in skeletal muscle release ACh. ?

A

Sympathetic (Thoracolumbar) Region

207
Q

Which region of the ANS has neurotransmitters that refers to the preganglionic neurons releasing ACh, which is excitatory and stimulates postganglionic neurons, with postganglionic neurons also releasing ACh?

A

Parasympathetic Craniosacral (region)

208
Q

Which region of the ANS has White and gray rami communicantes white rami communicates contain myelinated preganglionic axons; gray rami communicates contain unmyelinated postganglionic axons.

A

Sympathetic (Thoracolumbar) Region

209
Q

Which region of the ANS does not have White and gray rami communicantes ?

A

Parasympathetic Craniosacral (region)

210
Q

Which region of the ANS regarding the axon length and divergence has a preganglionic neurons with short axons synapse with many postganglionic neurons with long axons that pass to many visceral effectors ?

A

Sympathetic (Thoracolumbar) Region

211
Q

Which region of the ANS regarding the Axon length and divergence preganglionic neurons with long axons usually synapse with four to five postganglionic neurons with short axons that pass to single visceral effector.

A

Parasympathetic Craniosacral (region)

212
Q

Which region of the ANS regarding the Ganglia locations is close to CNS and distant from visceral effectors ?

A

Sympathetic (Thoracolumbar) Region

213
Q

Which region of the ANS regarding the Ganglia locations is typically near or within wall of visceral effectors ?

A

Parasympathetic Craniosacral (region)

214
Q

Which region of the ANS that is associated with ganglia are the Sympathetic trunk ganglia and prevertebral ganglia ?

A

Sympathetic (Thoracolumbar) Region

215
Q

Which region of the ANS that is associated with ganglia are the Terminal ganglia ?

A

Parasympathetic Craniosacral (region)

216
Q

Which region of the ANS that is location of preganglionic neuron cell bodies and site of outflow that is Lateral gray horns of spinal cord segments T1-L2. Axons of preganglionic neurons constitute thoracolumbar outflow ?

A

Sympathetic (Thoracolumbar) Region

217
Q

Which region of the ANS that is location of preganglionic neuron cell bodies and site of outflow that is Nuclei of cranial nerves III, VII, IX, and X and lateral gray matter of spinal cord segments S2-S4. Axons of preganglionic neurons constitute craniosacral outflow.

A

Parasympathetic Craniosacral (region)

218
Q

Which region of the ANS Distribution is wide regions of body: skin, sweat glands, arrector pili muscles of hair follicles, adipose tissue, smooth muscle of blood vessels ?

A

Sympathetic (Thoracolumbar) Region

219
Q

Which region of the ANS Distribution is limited mainly to head and to viscera of thorax, abdomen, and pelvis; some blood vessels ?

A

Parasympathetic Craniosacral (region)

220
Q

Which stimulation is the heart rate and force increased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

221
Q

Which stimulation is Heart rate and force decreased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

222
Q

Which stimulation is Iris (eye muscle) in pupil dilation ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

223
Q

Which stimulation is Iris (eye muscle) in Pupil constriction ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

224
Q

Which stimulation is salivary glands in Saliva production reduced ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

225
Q

Which stimulation is salivary glands in Saliva production increased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

226
Q

Which stimulation is Oral and nasal mucosa is mucus production reduced ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

227
Q

Which stimulation is Oral and nasal mucosa is Mucus production increased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

228
Q

Which stimulation in Lungs is the bronchial muscle relaxed ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

229
Q

Which stimulation in Lungs is the bronchial muscle contracted ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

230
Q

Which stimulation in the stomach peristalsis is reduced ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

231
Q

Which stimulation in the stomach gastric juice secreted; motility increased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

232
Q

Which stimulation in the Intestine reduces motility ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

233
Q

Which stimulation in the Intestine when digestion increased secretions and motility increased ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

Digestion increased (small intestine); secretions and motility increased (large intestine)

234
Q

Which stimulation in the kidney is decreased urine secretion ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Sympathetic Stimulation

235
Q

Which stimulation in the kidney is increased urine secretion ?

Choice’s
- Sympathetic Stimulation
- Parasympathetic Stimulation

A

Parasympathetic Stimulation

236
Q

Wernicke’s areas in the _____ hemisphere speak in a monotonous voice, having lost the ability to impart emotional inflection to what they say.

A

left hemisphere

237
Q

Another function of the RAS is to help maintain _________ (concentrating on a single object or thought)

A

Attention

238
Q

The RAS also prevents ________ (excessive visual and/or auditory stimulation) by filtering out insig- nificant information so that it does not reach consciousness.

A

sensory overload

239
Q

What system helps you wiTh this example

while waiting in the hallway for your anatomy class to begin, you may be unaware of all the noise around you while reviewing your exam

A

RAS

240
Q

Inactivation of the RAS produces what?

A

Sleep

241
Q

Damage to the RAS, on the other hand, results in what?

A

Coma

242
Q

The descending portion of the RAS has connections to the cerebellum and spinal cord and helps regulate what?

A

Muscle tone

243
Q

C6 - C8

A

Thoracodorsal

244
Q

S1-S2

A

Nerve to piriformis

245
Q

L2 - L3

A

Lateral cutaneous nerve of thigh

246
Q

Which hemisphere when damaged gets broca’s

A

Right

247
Q

Which hemisphere when damaged gets aphasia

A

Left

248
Q

Which hemisphere when damaged gets wernicke’s

A

Right

249
Q

Leads to Kbs

A

Lack of limbic system

Kluver bucy syndrome - hyper sexuality

250
Q

Functions in sex drive

A

Limbic system

ANAPHYSIO (27 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions