Nervous System Flashcards

1
Q

Brain legion are sets of _____ neurons

A

Interconnected

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2
Q

Humans have ______ brains and are very ___________ because of all the folds

A

Large, convoluted

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3
Q

In the human brain because we have so many folds we can hold lots of __________

A

Information

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4
Q

Humans have on average more ______ per neuron and more synapses per any given _______ in the brain

A

Dendrites, neurons

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5
Q

Most of the differences in our brain happen on the ______ most layer of the brain

A

Outer(cortex)

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6
Q

Even though human brains are different there lots of ________ aspects between us and animals

A

Common

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7
Q

CNS

A

Central nervous system Brain and spinal chords

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8
Q

PNS

A

Peripheral nervous system , Everything outside the brain and spinal cord

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9
Q

The peripheral nervous system includes

A

Somatic system, autonomic system

Cranial and spinal, parasympathetic, sympathetic

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10
Q

In order for something to be in the Central nervous system

A

It must start and end in the central nervous system

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11
Q

Somatic nervous system

A

Processes sensory information and controls the voluntary muscle movements

Ex) move eyes, wave hands

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12
Q

Autonomic nervous system

A

Things that you don’t have to think about typically

Ex) Controls muscles and visceral organs breathing, heart beat

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13
Q

Cranial nerves

A

Nerves that don’t go into the spinal cord

Ex)eye movement

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14
Q

Spinal nerves

A

Moving hands and feet

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15
Q

Parasympathetic nervous system

A

Controlling the dilation of your eyes, rest and digest system normal situations

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16
Q

Sympathetic nervous system

A

Controlling dilation of your eyes, Takes over when you’re in fight or flight mode

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17
Q

Central nervous system

A

of systems, lots of divisions within systems, it’s layers,

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18
Q

Phineaus gage

A

Example of how damages affect the brain in example the frontal cortex, he went through and big personality change, from responsible to being an ass.

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19
Q

Brain stem

A

Structures associated with automatic processes

Ex heart rate breathing

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20
Q

Limbic system

A

Involves motivation, emotion, memory

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21
Q

Cerebrum

A

Largest part of the brain, integrates sensory information, coordinates movements, facilitates thinking and reasoning(includes cerebral cortex)

Ex) putting movement together to accomplish walking

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22
Q

The three interconnected layers of the brain

A

Brain stem, limbic system, cerebrum

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23
Q

Cerebellum means/known for

A

(Little brain) known for being helpful in fine motor movement

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24
Q

The brain stem includes

A

Medulla, pons, cerebellum

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25
Medulla
Centre for breathing, blood pressure, amd heart beat
26
Pons
Provides input to other brain stem structures and cerebellum, sometimes called the bridge
27
Cerebellum
Coordinate bodily movements, controls posture, maintains equilibrium, involved in implicit motor learning
28
What does maintaining equilibrium means in cerebellum
Means maintaining balance
29
The limbic system
Surrounds brain stem | Includes the hippocampus, the amygdala, and the hypothalamus
30
The hippocampus
Structure for memory formation | Eg. H.M had short term memory, learning someone’s name
31
Amygdala
Controls emotion, aggression, and acquisition and retention of emotional information in memory Eg, helps people remember emotional events
32
Hypothalamus
Regulates motivated behaviour Eg.eating, temp, sexual arousal -maintains homeostasis -interfaces pituitary gland
33
Cerebral cortex structures
Frontal lobe, parietal lobe, occipital lobe, temporal lobe
34
Cerebrum
2/3 of the total mass of the brain | Includes the cerebral cortex, a thalamus, the cerebral hemispheres, the the corpus Callosum
35
Cerebral cortex
The outer layer of neurons | -Composed of billions of neurons
36
Thalamus
Relays incoming sensory information to the appropriate area of the cerebral cortex -translates information from the periphery into the form that can be used by the cortex
37
Cerebral hemisphere
Symmetrical halves the brain is divided into | -The brain also contains groups the divide it vertically and horizontally
38
Corpus callosum
Nerve fibres that send messages between the two brain hemispheres
39
Primary Somatosensory area
Touch information,feeling and where Eg. Texture, pain, temperature, teeth -organized by body parts
40
Primary motor area
In charge or movements | Eg.moving your finger, lips
41
Parietal lobe
Responsible for sensation of touch, pain, temperature
42
Occipital lobe
Primarily involve official processes, contains visual cortex(primary visual area)
43
Temporal lobe
Process related to hearing , contains auditory cortex
44
Frontal lobe
Involved in motor control and cognitive activities such as planning, decision-making, goalsetting, and personality
45
Specific cerebral cortex/primary motor system
Motor cortex, somatosensory cortex, association cortex
46
Association cortex
Interprets and Integrates integrates information from various sensory modalities(different modes) used to play in appropriate response to stimuli Eg.handwriting
47
What is the Output and the input of a sensory motor cortex
The output is the motor cortex, (controls body right side) the input is the sensory cortex (Receives input from right side)
48
What body part is in the motor cortex but not in the sensory cortex?
Teeth, gums, genitals because these don’t move but they feel
49
Places with more fine motor movement/ control needs more space in the _______ to function
Brain
50
auditory cortex
Processing information for hearing, lobe by the ear
51
Visual cortex
Processing information for seeing, back of the head to
52
What are the language areas of the cortex:aphasia
1. visual 2. angular gyrus 3. wernickes area 4. brocas area 5. motor
53
Visual cortex Language area
Receives written words as visual stimulation
54
Angular Gyrus Language area
Transforms visual representations into an auditory code
55
Wernickes area Language area
Interprets auditory code
56
Brocas area Language area
Control speech Muscles via the motor cortex
57
Motor cortex language area
Word is pronounced
58
Aphasia
The impairment of language usually caused by left hemisphere damage
59
Damage in the Broca’s area
Impaired speaking
60
Damage to wernikes
Impaired understanding
61
Language areas
Brain activity when hearing seeing and speaking words, using scan you can demonstrate specialization an integration of brain functions