Lecture 5

Question 1

Sympathetic

Answer 1

Thoracolumbar
synapse in paravertebral chain- short presynaptic
Fight or Flight

Question 2

Parasympathetic

Answer 2

Craniosacral- 3, 7, 9, 10
synapse near target- long presynaptic
Rest and Digest

Question 3

Norepinephrine

Answer 3

acts on organ in sympathetic system

Question 4

What part of sympathetic system is not affected by NE?

Answer 4

Sweat Glands

uses Ach instead

Question 5

Acetylcholine

Answer 5

synapse in symp and parasymp

on organ in parasympathetic

Question 6

Dopamine

Answer 6

acts on kidney in sympathetic system

Question 7

Adrenal Medulla

Answer 7

acts as a post-synaptic neuron in SNS

Question 8

ANS Receptors

Answer 8

Nicotinic Receptors for both divisions on post-synaptic nerves
PNS- M2, M3
SNS- a1, a2, B1, B2

Question 9

a2

Answer 9

regulate release of epinephrine and norepinephrine
inhibit cAMP
increase Ca flow

Question 10

Dual Innervation of the Eye

Answer 10

Dilator- SNS

Constrictor- PNS

Question 11

Dual Innervation of the Bladder

Answer 11

filling- SNS

emptying- PNS

Question 12

Afferent Sensory Nerves

Answer 12

carry info to brain stem or hypothalamus

Question 13

Efferent ANS Neurons

Answer 13

info carried to target organs

Question 14

Baroreceptor

Answer 14

sense drop in blood pressure
info processed in medulla
decrease HR- PNS- Vagus
increase HR- SNS- thoracic nn