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A&P Chapter 14 The Autonomic Nervous System

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Mastering A&P Human Anatomy & Physiology 10th Edition Marieb

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1

Drag the appropriate labels to their respective targets.

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2

Drag the appropriate labels to their respective targets.

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3
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Outflow of the sympathetic division occurs from which regions of the CNS?

thoracic and lumbar

4
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Which organ receives major input from the sympathetic, but not parasympathetic, division?

skin

5
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The group of fibers indicated by E represents which of the following?

white rami communicantes

6
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Which of the following statements is true of the group of fibers indicated by the letter D?

D indicates fibers which bypass collateral ganglia and terminate within the adrenal gland.

7
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Neurons that control the voluntary movement of the arm would be associated with which pathway?

A only

8
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The circular structures shown within both pathways B and C represent which of the following?

ganglia

9
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Which of the following is the site of the release of the neurotransmitter norepinephrine?

terminus of a sympathetic postganglionic neuron

10
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Which of the following statements is true?

The effects of neurotransmitters released from either sympathetic or parasympathetic postganglionic neurons may be stimulatory or inhibitory.

11

Which of the following is a way in which the somatic and autonomic nervous systems are similar?

Both systems elicit the same target organ responses to their neurotransmitters.
Both systems have ganglia in their motor pathways.
Both systems share common efferent pathways.
Both systems share common effectors.

None of the above.

12

Which of the following is not a result of parasympathetic stimulation?

dilation of the pupils

13

Because the ANS is a visceral motor system, afferent pathways are of no importance and actually are rarely found.

False

14

The ANS contains both sensory and motor neurons..

False

15
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Which component of the ANS is characterized by ganglia located in or near effector organs?

parasympathetic division

16

Oculomotor nerves are responsible for which of the following functions?

focusing the eyes on close objects

17

Parasympathetic ganglia are also called __________ because of their location.

terminal ganglia

18

The secretions of the adrenal medulla act to supplement the effects of ________.

sympathetic stimulation

19

The parasympathetic ganglion that serves the eye is the ________.

ciliary ganglion

20

Sympathetic nerves may leave the spinal cord at which vertebra?

first thoracic

21

Which of the following is NOT an autonomic nervous system (ANS) effector?

skeletal muscle

22

Conduction through the autonomic efferent chain is faster than conduction in the somatic motor system.

False

23

The ANS stimulates smooth muscles, skeletal muscles and glands, whereas the somatic nervous system innervates skeletal muscles only.

False

24

Which of these effectors is not directly controlled by the autonomic nervous system?

skeletal muscle

25

Preparing the body for the "fight-or-flight" response is the role of the ________.

sympathetic nervous system

26

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

hypothalamus

27

All visceral organs receive dual innervation from both the sympathetic and parasympathetic divisions of the ANS.

False

28

Norepinephrine-releasing fibers are called cholinergic fibers.

False

29

For which of the following activities is the parasympathetic nervous system generally responsible?

resting and digesting

30

Thermoregulatory responses to increased heat are mediated by the sympathetic nervous division.

True

31

Through direct neural stimulation, the sympathetic division promotes many metabolic effects via hormone release.

True

32

The two types of receptors that bind acetylcholine are __________ and __________ receptors.

nicotinic; muscarinic

33
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Which pathways comprise the autonomic nervous system?

B and C

34

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

hypothalamus

35

What differentiates an autonomic reflex from a somatic reflex?

a two-neuron motor pathway

36

Beta-blockers ________.

decrease heart rate and blood pressure

37

Which autonomic neurons release norepinephrine as a neurotransmitter?

sympathetic postganglionic neurons

38

The sympathetic division is also called the "thoracolumbar division" of the autonomic nervous system.

True

39

Cardiovascular effects of the sympathetic division include all except ________.

dilation of the blood vessels serving the skin and digestive viscera

40

The two divisions of the autonomic nervous system (ANS) normally have a(n) __________ relationship.

antagonistic

41

Because many of the same cardiac cells are innervated by both parasympathetic and sympathetic fibers, the influence of the two divisions on the heart is synergistic.

False

42

The autonomic nervous system may cause activation or inhibition, depending on the division that is active and the target that is affected.

True

43

The craniosacral division is another name for the parasympathetic division.

True

44

Autonomic reflex centers occur in the spinal cord, medulla, and midbrain.

True

45

Which of the following does not describe the ANS?

a system of motor neurons that innervates all muscle cells

46

The sympathetic division is also called the "thoracolumbar division" of the autonomic nervous system.

True

47

Because many of the same cardiac cells are innervated by both parasympathetic and sympathetic fibers, the influence of the two divisions on the heart is synergistic.

False

48

Emotions influence autonomic reactions primarily through integration in the ________.

hypothalamus

49

Which of the following is NOT an autonomic nervous system (ANS) effector?

skeletal muscle

50

Which autonomic neurons release norepinephrine as a neurotransmitter?

sympathetic postganglionic neurons

51

The "resting and digesting" division of the autonomic nervous system is the ________.

parasympathetic division

52

Thermoregulatory responses to increased heat are mediated by the sympathetic nervous division.

True

53

All visceral organs receive dual innervation from both the sympathetic and parasympathetic divisions of the ANS.

False

54

Cardiovascular effects of the sympathetic division include all except ________.

dilation of the blood vessels serving the skin and digestive viscera

55

Which division of the nervous system has short preganglionic neurons?

sympathetic

56

Acetylcholine is the substance released by the axonal endings of the somatic efferent fibers and by the parasympathetic nerve fiber endings.

True

57

Which of the following is NOT associated with the parasympathetic division of the autonomic nervous system (ANS)?

emergency action

58

Conduction through the autonomic efferent chain is faster than conduction in the somatic motor system.

False

59

The sympathetic and parasympathetic divisions of the ANS have the same effect on most body organ systems.

False

60

Norepinephrine-releasing fibers are called cholinergic fibers.

False

61

The ANS stimulates smooth muscles, skeletal muscles and glands, whereas the somatic nervous system innervates skeletal muscles only.

False

62

For which of the following activities is the parasympathetic nervous system generally responsible?

resting and digesting

63

Autonomic reflex centers occur in the spinal cord, medulla, and midbrain.

True

64

Preparing the body for the "fight-or-flight" response is the role of the ________.

sympathetic nervous system

65

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

hypothalamus

66

Which of these effectors is not directly controlled by the autonomic nervous system?

skeletal muscle

67
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Which pathways comprise the autonomic nervous system?

B and C

68

What is the effect of norepinephrine on the heart?

an increase in heart rate

69

Which of the following does not describe the ANS?

a system of motor neurons that innervates all muscle cells

70

Through direct neural stimulation, the sympathetic division promotes many metabolic effects via hormone release.

True


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