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S&F III: Exam 1 > ANS > Flashcards

Flashcards in ANS Deck (16):
1

sympathetic chain ganglia

in sympathetic trunk that extends from C1 to coccyx

2

prevertebral ganglia

anterior to L1-5 and the abdominal aorta
associated with arteries of ab aorta (celiac, superior, inferior mesenteric)

3

SNS preganglion cell bodies

T1-L3 form IML

4

SNS postganglion cell bodies

sympathetic chain and prevertebral ganglia

5

SNS function

increase: HR, FoC
dilates: bronchi, coronary arteries, muscle arteries; pupils
constricts: arteries to skin and gut, relaxes gut

6

PNS preganglion cell bodies

S2-S4; CN III, VII, IX, X

7

PNS postganglion cell bodies

terminal ganglia (in/at organ)

8

PNS function

decreases HR, blood pressure, constricts the other stuff

9

Sympathetic innerv only

sweat glands, medulla of adrenal, arrector pili

10

vagus nerve innerv.

thoracic viscera, most of gut

11

sacral nerves innerv

pelvic organs and large intestine distal to colic flexure

12

splanchnic nerves

SNS
emerge at T5-L2 to innervate preaortic ganglia (anterior to abdominal aorta)

13

how many white rami pairs does SNS preganglion axons send?

15

14

how many white rami pairs do SNS postganglion axons send

31

15

what rami do C1-C8, and L4-Coccyx have

gray

16

path of C1-T4

form cardiac nerves and pulmonary nerves W/O entering spinal nerve

form perivascular plexus