M3 Autonomic Nervous System Flashcards

1
Q

controls the voluntary actions and convery sensory information

A

somatic ns

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2
Q

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

A

Autonomic ns

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3
Q
  • act in conjunction w/ visceral motor fibers to control visceral functions
  • carry sensory information from viscera to cns
A

visceral sensory fibers

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4
Q
  • related to special sensory senses
  • not classified on both ans od sns but can modulate sns
A

special sensory fibers

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5
Q
  • regulates homeostasis and reproduction
  • activity of internal organs and vasculature
  • circulation, respiration, digestion, metabolism, secretions, body temperature, and reproduction
A

Autonomic NS

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6
Q

respond to pressure and to stretch

A

mechanoreceptors

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7
Q

sensitive to chemical concentrations in the blood

A

chemoreceptors

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8
Q

typically most responsive to stretch, ischemia, and pain stimulus

A

nociceptors

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9
Q

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

A

thermoreceptors

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10
Q

respond to external temperature changes

A

thermoreceptors

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11
Q

information from visceral receptors enters the central ns by two routes

A

afferent pathways

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12
Q

two routes of afferent pathways

A

spinal cord and brainstem

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13
Q

involved in regulating respiration

A

pons

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13
Q

regulate heart rate, respiration, vasoconstriction, and vasodilation

A

medulla

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14
Q

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

A

autonomic regulation

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15
Q

classified as sympathetic and parasympathetic

A

efferent pathways

16
Q

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

A

efferent pathways

17
Q

neuron extending from the central ns

A

pre ganglionic

18
Q

the neuron connecting the ganglion with the effector organ

A

post ganglionic

19
Q

secretes the neurotransmitter acetylcholine, norepinephrine, epinephrine.

A

autonomic neurons

20
Q

neuron that secrete acetylcholine are called?

A

cholinergic

21
Q

neurons that secrete norepinephrine or epinephrine are called?

A

adrenergic

22
Q

the chemical released by all presynaptic autonomic neurons?

A

acetylcholine

23
Q

receptors on all post ganglionic neurons are?

A

nicotinic

24
Q

sympathetic post ganglionic neurons release?

A

norepinephrine

25
Q

adrenal medulla releases?

A

epinephrine

26
Q

postganglionic parasympathetic neurons release

A

acetylcholine

27
Q

activated by a muscarine- a poison from mushrooms

A

muscarinic receptors

28
Q

activate through nicotine from the tobacco

A

nicotinic acetylcholine receptors

29
Q

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

A

adrenal medulla

30
Q

receptors that bind norepinephrine or epinephrine

A

adrenergic receptors

31
Q

main role is the optimal blood supply in the organs

A

sympathetic ns

32
Q
A