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CVPR > CVPR Week 3: Autonomic Physiology of the Cardiovascular System > Flashcards

CVPR Week 3: Autonomic Physiology of the Cardiovascular System Flashcards

1
Q

Objectives

A
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2
Q

Peripheral nervous system divisions

2 listed

A
  • autonomic nervous system
  • somatic nervous system
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3
Q

Skeletal muscle is innervated by?

A

Efferent motor & afferent sensory neurons of the somatic nervous division

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4
Q

Voluntary nervous system AKA

A

Somatic nervous system

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5
Q

The autonomic nervous system innervates?

A

Organs and tissue that typically do not require conscious control

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6
Q

Involuntary nervous system AKA

A

Autonomic nervous system

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7
Q

Autonomic nervous system divisions

3 listed

A
  • Sympathetic division
  • Parasympathetic division
  • Enteric Division
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8
Q

Most organs innervated by the ANS are innervated by this division?

A

By both the sympathetic and parasympathetic divisions of the ANS

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9
Q

The actions of the sympathetic and parasympathetic divisions are typically?

A

Antagonistic

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10
Q

An increase in sympathetic stimulation in the SA node will produce?

A

an increase in heart rate

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11
Q

An increase in parasympathetic stimulation in the SA node will produce?

A

a reduction in heart rate

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12
Q

How is homeostasis achieved by the ANS?

A

It is a balance of activity between the sympathetic and parasympathetic divisions of the ANS that helps maintain a stable environment in the face of changing external conditions

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13
Q

Tissues innervated only by one division of the ANS

A

Systemic vasculature is primarily innervated by the sympathetic division of the ANS

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14
Q

What system is primarily responsible for the regulation of heart rate, contractility and vascular tone?

A

The ANS

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15
Q

Properties of the Autonomic Nervous System

A
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16
Q

Sympathetic division organization

A
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17
Q

Parasympathetic division organization

A
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18
Q

Neurotransmitter release in ANS neurons

A
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19
Q

NE AKA

A

Norepinephrine

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20
Q

Sympathetic Nervous system neurotransmitters

A

Released at most postganglionic sympathetic nerve endings exceptions include the release of ACh at sweat glands and the release of dopamine at some renal arteries

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21
Q

Nerve fibers that release NE are referred to as?

A

Adrenergic fibers

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22
Q

A modified sympathetic ganglion

A

Adrenal medulla

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23
Q

Adrenal medulla properties

A
  • is a modified sympathetic ganglion and is innervated by sympathetic preganglionic fibers
  • These fibers synapse on chromaffin cells, which release epinephrine (adrenaline) and a smaller fraction of NE (noradrenaline) into the blood
  • Therefore epinephrine and NE act as endocrine factors
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24
Q

Epinephrine and NE are known as?

A

Catecholamines

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25
Q

Some NE is actively transported back into the postganglionic neuron where it is?

A

Degraded by monoamine oxidase (MAO) in the mitochondria

26
Q

ACh is released by

A
  • ALL preganglionic autonomic fibers
  • All postganglionic parasympathetic fibers
27
Q

Nerve fibers that release ACh are called?

A

Cholinergic fibers

28
Q

Once ACh has been degraded it is?

A

Choline actively transported back into the postganglionic varicosity and used to synthesize additional ACh

29
Q

ACh is degraded by?

A

Acetylcholinesterase

30
Q

ACh is degraded into?

A

Choline and acetate

31
Q

Drugs to treat cocaine intoxication

A
32
Q

CNS effects of cocaine and nicotine

A
33
Q

CP effects of cocaine

A
34
Q

Crack lung?

A
35
Q

cocaine myocardial supply and demand effects

A
36
Q

Other effects of cocaine

A
37
Q

Clinical indicators of shock

A
38
Q

Do not treat cocaine intoxication with?

A

β-blockers!!!!!

39
Q

Adrenergic receptors

A
40
Q

Mottling is suggestive of

A

shock

41
Q

Question

A
42
Q

Explain the RAS system

A
43
Q

Renin synthesis and release

A
44
Q

Question

A
45
Q

Question explanation

A
46
Q

Question: Part A

A
47
Q

Question: Part B

A
48
Q

Question: Part A

A
49
Q

Question: Part B

A
50
Q

Question: Part C

A
51
Q

Question: Part D

A
52
Q

Question: Part E

A
53
Q

Question: Part A

A
54
Q

Question: Part B

A
55
Q

Question: Part C

A
56
Q

Question: Part A

A
57
Q

Question 6: Part B

A
58
Q

Question 6: Part C

A
59
Q

Responses to β receptor stimulation

A
60
Q

Question 6: Part D

A
61
Q

What are these?

A

CVPR (93 decks)

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