Autonomic Nervous System

Question 1

autonomic nervous system

Answer 1

part of PNS that functions without conscious effort
*controls visceral activities
2 divisions:
sympathetic & parasympathetic

Question 2

sympathetic division of ANS

Answer 2

prepares body for fight or flight response

Question 3

parasympathetic division of ANS

Answer 3

prepares the body for rest and digestive activites

Question 4

autonomic nerve fibers

Answer 4

*nerves of the autonomic nervous system
*all are motor neurons

Question 5

cholinergic receptors

Answer 5

bind to Acetylcholine
2 types:
muscarinic receptors & nicotinic receptors

Question 6

muscarinic receptors

Answer 6

excitatory, slow, also activated by fungal toxin, muscarine

Question 7

nicotinic receptors

Answer 7

excitatory, rapid, also activated by tobacco toxin, nicotine

Question 8

adrenergic receptors

Answer 8

bind to epinephrine and norepinephrine
2 types:
alpha receptors & beta receptors

Question 9

alpha receptors

Answer 9

divided into subclasses Alpha 1 & Alpha 2

Question 10

beta receptors

Answer 10

divide into subclasses Beta1, Beta 2, Beta 3

Question 11

terminating autonomic neurotransmitter actions

Answer 11

acetylcholinesterase (AChE) rapidly decomposes acetylcholine
monoamine oxidase (MAO) inactivates norepinephrine

Question 12

hypothalamus

Answer 12

regulates visceral function of ANS

Question 13

medulla oblongata

Answer 13

regulates cardiac, vasomotor & respiratory activites of ANS

Question 14

cerebral cortex

Answer 14

controls emotional responses