Autonomic Nervous System

Question 1

Autonomic Nervous System regulates

Answer 1

Smooth muscle, cardiac muscle, and glands

Question 2

Lateral horn contains

Answer 2

Preganglionic, sympathetic neurons

Question 3

Where are preganglionic sympathetic cell neurons located in the lateral horn? (which vertebra)

Answer 3

T1 to L2

Question 4

ANS uses what type of system?

Answer 4

two neuron motor system

Question 5

First neuron is in ____

Answer 5

CNS

Question 6

Second neuron is in ____

Answer 6

ganglion outside of the CNS

Question 7

Somatomotor fibers of somatic system run

Answer 7

From CNS to target

Question 8

Ganglia for sympathetic fibers

Answer 8

Paravertebral (sympathetic)

Prevertebral (collateral)

Question 9

Ganglia for parasympathetic fibers

Answer 9

Intramural ganglia

Question 10

Paravertebral

Answer 10

Located alongside the vertebral column all the way from cervical to sacral

Question 11

Prevertebral

Answer 11

Position on top of aorta or other unpaired arteries

Question 12

Intramural

Answer 12

Within the wall of organ in between smooth muscle layers

Question 13

Which nerve fibers longest?

Answer 13

Parasympathetic bc vagus nerve

Question 14

Sympathetic preganglionic fiber

Answer 14

Thoracolumbar divisions of spinal cord
Located in Lateral horn of spinal cord
From T1-L2

Question 15

Sympathetic postganglionic fiber

Answer 15

Sympathetic chain ganglia (para)
Collateral ganglia (pre)

Question 16

Parasympathetic preganglionic fiber

Answer 16

Craniosacral divisions of spinal cord

S2-S4 and cranial nerves 3, 7 ,9 and, 10

Question 17

Parasympathetic postganglionic fiber

Answer 17

intramural ganglia

OR specific parasympathetic ganglia in the head

Question 18

3 routes a sym preganglionic fiber can take

Answer 18

Paravertebral ganglia on same level
Paravertebral on a different level
Bypass paravertebral ganglia and travel in a splanchic nerve to reach prevertebral ganglia on surface of abdominal aorta

Question 19

Paravertebral used to

Answer 19

Distribute all over the body

Question 20

Prevertebral used to

Answer 20

Communicate specifically with viscera

Question 21

Rami communicans

Answer 21

Used to connect ventral ramus to sympathetic trunk

Question 22

White rami communicans

Answer 22

Entryway…lateral

Question 23

Gray rami communicans

Answer 23

Exit way…medial

Question 24

Every spinal nerve has a

Answer 24

Postganglionic sympathetic neuron

Question 25

Gray and white are found at which levels

Answer 25

Gray at all

White at T1-L2

Question 26

CN X

Answer 26

Vagus nerve

Travels through neck, thorax, abdomen

Question 27

Path of preganglionic parasympathetic fibers

Answer 27

Often travel through the collateral ganglia (not synapsing) and into the intramural ganglia of the wall of an organ

Question 28

Viscerosensory fiber path

Answer 28

Travels through white ramus communicans to reach dorsal ramus and dorsal horn of spinal cord

Question 29

Cell body of viscerosensory fiber

Answer 29

Resides in dorsal root ganglion…similar tosomatosensory fiber