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Personal Neuro > Class 3 Deck 1 > Flashcards

Class 3 Deck 1 Flashcards

(50 cards)

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1
Q

Cranial nerve 1

A

-Olfactory (sense of smell)

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2
Q

Cranial nerve 2

A

-Optic nerve

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3
Q

The 2 optic nerves join to form what?

A

-Optic chiasm

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4
Q

Cranial nerve 3 is called what? and causes the eye to do what?

A
  • Ocular motor

- Eye to Adduct

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5
Q

What 4 eye muscles does cranial nerve 3 innervate?

A
  • Medial rectus
  • Superior rectus
  • Levator palpebrae
  • Inferior oblique
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6
Q

Cranial nerve 4 is called what? and causes the eye to do what? and innervates what muscle?

A
  • Trochlear
  • Eye movement down
  • Superior oblique
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7
Q

What is cranial nerve 5? and what does it do?

A
  • Trigeminal

- Sensory impulses from the face

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8
Q

What cranial nerve is responsible for chewing?

A
  • Cranial nerve 5 (trigeminal)
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9
Q

Cranial nerve 6 is called what? What does it do? What muscle does it innervate?

A
  • Abducens
  • Abducts the eye
  • Lateral rectus muscle
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10
Q

What does the medial rectus muscle do? lateral rectus muscle?

A
  • Adducts the eye

- Abducts the eye

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11
Q

Cranial nerve 7 is called what? What does it do?

A
  • Facial nerve

- Facial muscles and Taste

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12
Q

What are the 5 muscles of the facial nerves (hand on face)?

A
  • Temporal
  • Zygomatic
  • Buccal
  • Mandibular
  • Cevical
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13
Q

What is cranial nerve 8 called? and what are the 2 divisions?

A
  • Acoustic

- Vestibular and cochlear

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14
Q

In cranial nerve 8 (acoustic) what doe the vestibular nerve do? Cochlear?

A
  • Balance

- Hearing

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15
Q

Cranial nerve 9 is what? and does what 2 things does it do?

A
  • Glossopharyngeal
  • Sensory to external ear and posterior tongue
  • Motor to pharynx for swallowing and parotid gland for secreting saliva
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16
Q

What is cranial nerve 10 called? and what does it do?

A
  • Vagus nerve
  • Sensory innervation to many organs throughout the thorax and abdomen
  • Motor to the abdominal viscera and swallowing muscles of pharynx and larynx
  • Parasympathetic innervation of organs
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17
Q

What is cranial nerve 11? and what does it do?

A
  • Accessory

- Shoulder and head movements

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18
Q

What is cranial nerve 12? and what does it do?

A
  • Hypoglossal

- Innervates tongue muscles

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19
Q

What is the autonomic nervous sytsem?

A

-Autonomic regulation to: Smooth muscle, cardiac muscle, glands, adipose tissue

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20
Q

What is the autonomic nervous system effector targets?

A
  • Smooth muscle
  • Cardiac muscle
  • Glands
  • Adipose tissue
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21
Q

Is the autonomic nervous system motor or sensory?

22
Q

What are the 2 divisions of the autonomic nervous system?

Study These Flashcards
A
  • Sympathetic (adrenergic) fight or flight

- Parasympathetic (cholinergic) rest and digest

23
Q

Why are autonomic motor neurons slower than somatic motor neurons?

Study These Flashcards
A

-They are unmyelinated

24
Q

How does the autonomic nervous system travel?

Study These Flashcards
A

-Spinal cord - preganglion neuron (myelinated) - autonomic ganglion - postganglion neuron (unmyelinated) - than to target site.

25
How does the autonomic nervous system control homeostasis?
- Arterial pressure - GI motility/secretion - GU motility - Body temp (sweating)
26
Which division of the autonomic nervous system is considered craniosacral? Thoracolumbar?
- craniosacral = parasympathetic | - Thoracolumbar = sympathetic
27
Where do the preganglionic nerves from the sympathetic nervous system originate?
Intermediolateral gray of the spinal cord
28
What part of the body do sympathetic nerves travel?
-Every part of the body
29
What is the neurotransmitter released by most postganglionic adrenergic (sympathetic) fibers? What by the preganglionic fibers?
- NorEpi | - Ach
30
Preganglionic neurons of the SNS originate in the region of gray matter in the thoracic and upper lumbar region called the ________
Lateral horn
31
The preganglionic neuron is myelinated and the axons of these form what?
-White ramus
32
The postganglionic neurons are unmyelinated and leave the ganglion as the what?
-Gray Ramus
33
Describe pattern 2 of the sympathetic nervous system.
- Long pregangliotic neurons, no post gangliotic neurons (fully myelinated) - innervate chromaffin cells of the adrenal medulla - Releases Epi (80%) and NorEpi (20%)
34
Describe pattern 3 of the sympathetic nervous system.
- Pass through the ganglia and synapse in prevertebral ganglion - Long pre and short post ganliotic neurons - Innervates intestines and bladder
35
Describe pattern 1 of the sympathetic nervous system
-Short pregangliotic neuron -Synapse in sympathetic chain (can move up or down) Long postganliotic chain
36
The parasymathetic nervous system is also known as what?
- Craniosacral - Rest and digest - Cholinergic
37
Parasymathetic only innervate what?
-Organs
38
What is the neurotransmitter for parasymapthetic end organ and pregangliotic synapse?
-Ach
39
What are the craniosacral nerves in which the parasympathetic nerves originate?
- Cranial nerves = 3, 7, 9, 10 | - S2-4
40
The sacral outflow from S2-4 innervates what?
- Rectum - Bladder - Uterus - External genitalia
41
What is responsible for erections and ejaculation?
- Erection = PNS | - Ejaculation = SNS
42
The cranial outflow for parasympathetic innervation does what?
- 3 = pupils constrict - 7 = Tears, saliva - 9 = Parotid salivary gland - 10 = Stimulates digestion, Decrease HR, Bronchial constriction
43
Preganglionic fibers of the PNS pass _______ all the way to the organ to be controlled and synapse
Uninterupted
44
Postganglionic fibers of the PNS are located on the ______ of the organ to be controlled
Wall
45
Neurons that release Ach are called what?
-Cholinergic
46
What are the 3 cholinergic neurons?
- All preganlionic neurons of the autonomic nervous system - Post gangliotic neurons of the PNS - Sweat glands
47
Neurons that release NorEpi are called what?
-Adrenergic
48
What neurons are adrenergic?
-sympathetic postgliotic neurons
49
What are the 2 classes of cholinergic receptors?
- Nicotinic | - Muscarnic
50
Where are nicotinic receptor are found on the cell bodies and dendrites of what 3 things?
- sympathetic ad parasympathetic neurons - Chromaffin cells - Skeletal muscles cells

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