CVPR Week 3: Autonomic Physiology of the Cardiovascular System

Question 1

Objectives

Answer 1

Question 2

Peripheral nervous system divisions

2 listed

Answer 2

• autonomic nervous system
• somatic nervous system

Question 3

Skeletal muscle is innervated by?

Answer 3

Efferent motor & afferent sensory neurons of the somatic nervous division

Question 4

Voluntary nervous system AKA

Answer 4

Somatic nervous system

Question 5

The autonomic nervous system innervates?

Answer 5

Organs and tissue that typically do not require conscious control

Question 6

Involuntary nervous system AKA

Answer 6

Autonomic nervous system

Question 7

Autonomic nervous system divisions

3 listed

Answer 7

• Sympathetic division
• Parasympathetic division
• Enteric Division

Question 8

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

Answer 8

By both the sympathetic and parasympathetic divisions of the ANS

Question 9

The actions of the sympathetic and parasympathetic divisions are typically?

Answer 9

Antagonistic

Question 10

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

Answer 10

an increase in heart rate

Question 11

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

Answer 11

a reduction in heart rate

Question 12

How is homeostasis achieved by the ANS?

Answer 12

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

Question 13

Tissues innervated only by one division of the ANS

Answer 13

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

Question 14

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

Answer 14

The ANS

Question 15

Properties of the Autonomic Nervous System

Answer 15

Question 16

Sympathetic division organization

Answer 16

Question 17

Parasympathetic division organization

Answer 17

Question 18

Neurotransmitter release in ANS neurons

Answer 18

Question 19

NE AKA

Answer 19

Norepinephrine

Question 20

Sympathetic Nervous system neurotransmitters

Answer 20

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

Question 21

Nerve fibers that release NE are referred to as?

Answer 21

Adrenergic fibers

Question 22

A modified sympathetic ganglion

Answer 22

Adrenal medulla

Question 23

Adrenal medulla properties

Answer 23

• 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

Question 24

Epinephrine and NE are known as?

Answer 24

Catecholamines

Question 25

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

Answer 25

Degraded by monoamine oxidase (MAO) in the mitochondria

Question 26

ACh is released by

Answer 26

* **ALL** preganglionic autonomic fibers * All postganglionic parasympathetic fibers

Question 27

Nerve fibers that release ACh are called?

Answer 27

Cholinergic fibers

Question 28

Once ACh has been degraded it is?

Answer 28

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

Question 29

ACh is degraded by?

Answer 29

Acetylcholinesterase

Question 30

ACh is degraded into?

Answer 30

Choline and acetate

Question 31

Drugs to treat cocaine intoxication

Answer 31

Question 32

CNS effects of cocaine and nicotine

Answer 32

Question 33

CP effects of cocaine

Answer 33

Question 34

Crack lung?

Question 35

cocaine myocardial supply and demand effects

Question 36

Other effects of cocaine

Answer 36

Question 37

Clinical indicators of shock

Answer 37

Question 38

Do not treat cocaine intoxication with?

Answer 38

β-blockers!!!!!

Question 39

Adrenergic receptors

Answer 39

Question 40

Mottling is suggestive of

Answer 40

shock

Question 41

Question

Answer 41

Question 42

Explain the RAS system

Answer 42

Question 43

Renin synthesis and release

Answer 43

Question 44

Question

Answer 44

Question 45

Question explanation

Answer 45

Question 46

Question: Part A

Answer 46

Question 47

Question: Part B

Answer 47

Question 48

Question: Part A

Answer 48

Question 49

Question: Part B

Answer 49

Question 50

Question: Part C

Answer 50

Question 51

Question: Part D

Answer 51

Question 52

Question: Part E

Answer 52

Question 53

Question: Part A

Answer 53

Question 54

Question: Part B

Answer 54

Question 55

Question: Part C

Answer 55

Question 56

Question: Part A

Answer 56

Question 57

Question 6: Part B

Answer 57

Question 58

Question 6: Part C

Answer 58

Question 59

Responses to β receptor stimulation

Answer 59

Question 60

Question 6: Part D

Answer 60

Question 61

What are these?

Answer 61