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A&P Chapter 14 The Autonomic Nervous System

front 1

Drag the appropriate labels to their respective targets.

back 1

front 2

Drag the appropriate labels to their respective targets.

back 2

front 3

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

back 3

thoracic and lumbar

front 4

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

back 4

skin

front 5

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

back 5

white rami communicantes

front 6

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

back 6

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

front 7

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

back 7

A only

front 8

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

back 8

ganglia

front 9

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

back 9

terminus of a sympathetic postganglionic neuron

front 10

Which of the following statements is true?

back 10

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

front 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.

back 11

None of the above.

front 12

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

back 12

dilation of the pupils

front 13

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

back 13

False

front 14

The ANS contains both sensory and motor neurons..

back 14

False

front 15

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

back 15

parasympathetic division

front 16

Oculomotor nerves are responsible for which of the following functions?

back 16

focusing the eyes on close objects

front 17

Parasympathetic ganglia are also called __________ because of their location.

back 17

terminal ganglia

front 18

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

back 18

sympathetic stimulation

front 19

The parasympathetic ganglion that serves the eye is the ________.

back 19

ciliary ganglion

front 20

Sympathetic nerves may leave the spinal cord at which vertebra?

back 20

first thoracic

front 21

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

back 21

skeletal muscle

front 22

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

back 22

False

front 23

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

back 23

False

front 24

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

back 24

skeletal muscle

front 25

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

back 25

sympathetic nervous system

front 26

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

back 26

hypothalamus

front 27

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

back 27

False

front 28

Norepinephrine-releasing fibers are called cholinergic fibers.

back 28

False

front 29

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

back 29

resting and digesting

front 30

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

back 30

True

front 31

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

back 31

True

front 32

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

back 32

nicotinic; muscarinic

front 33

Which pathways comprise the autonomic nervous system?

back 33

B and C

front 34

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

back 34

hypothalamus

front 35

What differentiates an autonomic reflex from a somatic reflex?

back 35

a two-neuron motor pathway

front 36

Beta-blockers ________.

back 36

decrease heart rate and blood pressure

front 37

Which autonomic neurons release norepinephrine as a neurotransmitter?

back 37

sympathetic postganglionic neurons

front 38

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

back 38

True

front 39

Cardiovascular effects of the sympathetic division include all except ________.

back 39

dilation of the blood vessels serving the skin and digestive viscera

front 40

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

back 40

antagonistic

front 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.

back 41

False

front 42

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

back 42

True

front 43

The craniosacral division is another name for the parasympathetic division.

back 43

True

front 44

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

back 44

True

front 45

Which of the following does not describe the ANS?

back 45

a system of motor neurons that innervates all muscle cells

front 46

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

back 46

True

front 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.

back 47

False

front 48

Emotions influence autonomic reactions primarily through integration in the ________.

back 48

hypothalamus

front 49

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

back 49

skeletal muscle

front 50

Which autonomic neurons release norepinephrine as a neurotransmitter?

back 50

sympathetic postganglionic neurons

front 51

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

back 51

parasympathetic division

front 52

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

back 52

True

front 53

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

back 53

False

front 54

Cardiovascular effects of the sympathetic division include all except ________.

back 54

dilation of the blood vessels serving the skin and digestive viscera

front 55

Which division of the nervous system has short preganglionic neurons?

back 55

sympathetic

front 56

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

back 56

True

front 57

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

back 57

emergency action

front 58

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

back 58

False

front 59

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

back 59

False

front 60

Norepinephrine-releasing fibers are called cholinergic fibers.

back 60

False

front 61

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

back 61

False

front 62

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

back 62

resting and digesting

front 63

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

back 63

True

front 64

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

back 64

sympathetic nervous system

front 65

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

back 65

hypothalamus

front 66

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

back 66

skeletal muscle

front 67

Which pathways comprise the autonomic nervous system?

back 67

B and C

front 68

What is the effect of norepinephrine on the heart?

back 68

an increase in heart rate

front 69

Which of the following does not describe the ANS?

back 69

a system of motor neurons that innervates all muscle cells

front 70

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

back 70

True