ANS RQ

Question 1

CNS

Answer 1

consists of brain and spinal cord

Question 2

afferent

Answer 2

carry info from sensory to CNS

Question 3

efferent

Answer 3

carry info away from CNS to tissue or muscles

Question 4

PNS

Answer 4

rest and digest
slow hr thorough release of Ach
reduce airflow through bronchoconstriction
stimulate digestion
constrict pupils

Question 5

SNS

Answer 5

fight or flight
increase hr through norepinephrine
induce bronchodilation to enhance airflow
inhibit digestion
dilate pupils

Question 6

ENS

Answer 6

located in Gi tract
regulates digestive functions of GI,

Question 7

myenteric plexus

Answer 7

group of ganglia that runs throughout entire GI tract
responsible for peristaltic movement of bowels

Question 8

submucosal plexus

Answer 8

located in submucosa
modulate blood flow and increase digestive secretion

Question 9

EDRF

Answer 9

endogenous vasodilator that endothelial cells can produce
causes sm to relax, activates guanylate cyclase
inhibitor of aggregation and adhesion of platelets

Question 10

what neurotransmitter released from first projection neuron in both branches ANS

Answer 10

Ach

Question 11

what neurotransmitter released from second projection neuron in both branches ANS

Answer 11

PNS release ach
SNS release norepinephrine

Question 12

spastic paralysis

Answer 12

muscles remain in constant contraction and become rigid and immobile

Question 13

flaccid paralysis

Answer 13

muscles cannot contract and are floppy and immobile
occurs when LMN damaged

Question 14

AChE

Answer 14

used to terminate neuronal transmission and signaling between synapses to prevent ach dispersal
breaks down ach into acetic acid and choline

Question 15

parathion

Answer 15

irreversible anticholinesterase, ach will accumulate leading to improper neuron function

Question 16

DOPA-> epi

Answer 16

Dopamine formed by DOPA decarboxylase
Dopamine made into norepinephrine by dopamine beta-hydroxylase
norepinephrine into epinephrine by PNMT