Visceral Motor

Question 1

Sympathetic general function

Answer 1

fight or flight

Question 2

Parasympathetic general function

Answer 2

rest & digest

Question 3

SNS - what part of CNS?

Answer 3

Thoracolumbar

Question 4

PNS - what part of CNS?

Answer 4

Craniosacral

Question 5

Cranial PNS

Answer 5

CN 3, 7, 9, 10

Question 6

Sacral PNS

Answer 6

Pelvic Splanchnic N

Invx lower 1/3 colon, rectum, bladder, reproductive

Question 7

Myenteric (Auerbach) Plexus

Answer 7

regulates muscular control of gut

Question 8

Submucus (Meissner) Plexus

Answer 8

chemical monitoring

glandular secretions

Question 9

Afferent pathway of Visceral Motor System

Answer 9

1. Cell bodies in Vagus N Ganglia
2. Axons project up Vagus –> NST (medulla)
3. NST –> Hypothalamus

Question 10

Hypothalamus receives input from

Answer 10

1. Cerebral Cortex
2. Amydgala
3. NST

Question 11

Pre-ganglionic SNS release what NT?

Answer 11

ACh

Question 12

Pre-ganglionic PNS release what NT?

Answer 12

ACh

Question 13

Post-ganglionic SNS release what NT?

Answer 13

NE

Question 14

Post-ganglionic PNS release what NT?

Answer 14

ACh

Question 15

Pathway when BP increases

Answer 15

1. Baroreceptors project thru Vagus –> NST –> Hypothalamus.
2. Hypothalamus –> inhibits SNS
3. Hypothalamus –> excites PNS
   Result = decreased HR

Question 16

Pathway when BP decreases

Answer 16

1. Baroreceptors project thru Vagus –> NST –> Hypothalamus.
2. Hypothalamus –> excites SNS
3. Hypothalamus –> inhibits PNS
   Result = increased HR