Exam 3: Autonomic Nervous System Flashcards

1
Q

Who is the supreme overseer of the autonomic system?

A

Hypothalamus

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2
Q

Where is the preganglionic cell body of the SANS?

A

Thoracolumbar

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3
Q

Where is the preganglionic cell body of the PSANS?

A

Brainstem and sacral spine

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4
Q

What does the preganglionic cell body of the SANS and PSANS release in the ganglion? What is the receptor for this in the ganglion?

A

Ach

Nicotinic receptor

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5
Q

Where is the cell body of the somatic motor system located?

A

Ventral horn spine

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6
Q

What does the cell body of the somatic motor system release? What is its receptor?

A

Ach

Nicotinic

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7
Q

What does the postganglionic neuron release in the SANS? What are the receptors?

A

Norepinephrine

α and β

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8
Q

What does the postganglionic neuron release in the PSANS? What are the receptors?

A

Ach

Muscarinic

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9
Q

Which axon is longest for the SANS, preganglionic or postganglionic?

A

Postganglionic

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10
Q

Which axon is longest for the PSANS, preganglionic or postganglionic?

A

Preganglionic

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11
Q

Where are the postganglionic cell bodies located for SANS innervation to the eye?

A

Cranial cervical ganglia

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12
Q

What cranial nerves supply PANS to the head?

A

3, 7, 9, 10

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13
Q

Who supplies PANS innervation to the thorax and cranial abdomen?

A

Vagus nerve

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14
Q

Who supplies SANS innervation to the caudal abdomen?

A

Splanchnic nerves

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15
Q

Who is fight or flight, SANS or PSANS?

A

SANS

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16
Q

Who is rest or digest, SANS or PSANS?

17
Q

Which connects to the adrenal gland, SANS or PSANS?

18
Q

How do fibers from the thoracolumbar SANS get to the areas cranial or caudal to these spinal cord segments?

A

Sympathetic trunk

19
Q

What is the ganglion for the SANS to the bladder?

A

Caudal mesenteric ganglion

20
Q

What makes the pupil constrict, SANS or PSANS?

21
Q

What is the ganglion for pupil constriction called?

A

Ciliary ganglion

22
Q

What is the postganglionic nerve for pupil constriction called?

A

Short ciliary nerve

23
Q

What makes the pupil dilate, SANS or PSANS?

24
Q

What makes you salivate?

A

Smell
CN 7: mandibular and sublingual salivary glands
Cn 9: Parotid and zygomatic salivary glands

25
If you had been in a car accident and had to have one of the two pupil descriptions, which would you want to have, bilateral fixed and dilated or bilateral miosis?
Bilateral miosis
26
What is miosis?
Constricted pupil
27
What is mydriasis?
Dilated pupil
28
What is anisocoria?
Different pupil sizes