M3 Autonomic Nervous System

Question 1

controls the voluntary actions and convery sensory information

Answer 1

somatic ns

Question 2

controls involuntary actions and regulates the viscera, vasculature, and glands

Answer 2

Autonomic ns

Question 3

• act in conjunction w/ visceral motor fibers to control visceral functions
• carry sensory information from viscera to cns

Answer 3

visceral sensory fibers

Question 4

• related to special sensory senses
• not classified on both ans od sns but can modulate sns

Answer 4

special sensory fibers

Question 5

• regulates homeostasis and reproduction
• activity of internal organs and vasculature
• circulation, respiration, digestion, metabolism, secretions, body temperature, and reproduction

Answer 5

Autonomic NS

Question 6

respond to pressure and to stretch

Answer 6

mechanoreceptors

Question 7

sensitive to chemical concentrations in the blood

Answer 7

chemoreceptors

Question 8

typically most responsive to stretch, ischemia, and pain stimulus

Answer 8

nociceptors

Question 9

hypothalamus responds to very small changes in the temperature of circulating blood

Answer 9

thermoreceptors

Question 10

respond to external temperature changes

Answer 10

thermoreceptors

Question 11

information from visceral receptors enters the central ns by two routes

Answer 11

afferent pathways

Question 12

two routes of afferent pathways

Answer 12

spinal cord and brainstem

Question 13

involved in regulating respiration

Answer 13

pons

Question 13

regulate heart rate, respiration, vasoconstriction, and vasodilation

Answer 13

medulla

Question 14

is often achieved by integrating info from peripheral afferents with info from receptors within the cns

Answer 14

autonomic regulation

Question 15

classified as sympathetic and parasympathetic

Answer 15

efferent pathways

Question 16

connections from the cns to autonomic effectors use a two neuron pathway

Answer 16

efferent pathways

Question 17

neuron extending from the central ns

Answer 17

pre ganglionic

Question 18

the neuron connecting the ganglion with the effector organ

Answer 18

post ganglionic

Question 19

secretes the neurotransmitter acetylcholine, norepinephrine, epinephrine.

Answer 19

autonomic neurons

Question 20

neuron that secrete acetylcholine are called?

Answer 20

cholinergic

Question 21

neurons that secrete norepinephrine or epinephrine are called?

Answer 21

adrenergic

Question 22

the chemical released by all presynaptic autonomic neurons?

Answer 22

acetylcholine

Question 23

receptors on all post ganglionic neurons are?

Answer 23

nicotinic

Question 24

sympathetic post ganglionic neurons release?

Answer 24

norepinephrine

Question 25

adrenal medulla releases?

Answer 25

epinephrine

Question 26

postganglionic parasympathetic neurons release

Answer 26

acetylcholine

Question 27

activated by a muscarine- a poison from mushrooms

Answer 27

muscarinic receptors

Question 28

activate through nicotine from the tobacco

Answer 28

nicotinic acetylcholine receptors

Question 29

part of the sympathetic system, is specialized to release epinephrine and norepinephrine directly into the blood

Answer 29

adrenal medulla

Question 30

receptors that bind norepinephrine or epinephrine

Answer 30

adrenergic receptors

Question 31

main role is the optimal blood supply in the organs

Answer 31

sympathetic ns