Test bank for fundamentals of anatomy physiology 9th edition by martini

Answer: D Learning Outcome: 13-2 Bloom’s Taxonomy: Knowledge 6 The dorsal root of a spinal nerve contains A axons of motor neurons.. Answer: B Learning Outcome: 13-2 Bloom’s Taxonomy: Kn

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9th Edition by Martini

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https://getbooksolutions.com/download/test-bank-for-fundamentals-of-Chapter 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes

Multiple-Choice Questions

1) The spinal cord is part of the

A) peripheral nervous system

B) somatic nervous system

C) central nervous system

D) autonomic nervous system

E) afferent nervous system

Answer: C

Learning Outcome: 13-1

Bloom’s Taxonomy: Knowledge

2) The is a strand of fibrous tissue that provides longitudinal support as a component of the coccygeal ligament

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3) Spinal nerves are

4) The spinal cord consists of five regions and segments A) 5

5) The dorsal root ganglia mainly contain

A) axons of motor neurons

B) axons of sensory neurons

C) cell bodies of motor neurons

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D) cell bodies of sensory neurons

E) synapses

Answer: D

6) The dorsal root of a spinal nerve contains A) axons of motor neurons

E) interneurons

Answer: B

7) The ventral root of a spinal nerve contains A) axons of motor neurons

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8) The tough, fibrous, outermost covering of the spinal cord is the

9) After age the vertebral column continues to elongate, but the spinal cord itself does not

10) If the dorsal root of a spinal nerve is severed,

A) output to skeletal muscles would be blocked

B) output to visceral organs would be blocked

C) the spinal cord would not be able to process information at that level

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D) the brain would not be able to communicate with that level of the spinal cord

E) sensory input would be blocked

Answer: E

Bloom’s Taxonomy: Comprehension

11) The subdural space lies between

A) the arachnoid mater and the pia mater

B) the pia mater and the dura mater

C) the dura mater and the arachnoid mater

D) the pia mater and the subarachnoid space

E) the endosteum and the periosteum

Answer: C

12) The layer of the meninges in direct contact with the spinal cord is the A) dura mater

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13) A dorsal and ventral root of each spinal segment unite to form a

A) inflammation of the meninges occurs

B) bacteria can be the cause

C) viruses can be the cause

D) CSF flow can be disrupted

E) All of the answers are correct

Answer: E

15) Which of the following is true regarding an epidural block?

A) It is commonly used as a method of pain control during labor and delivery B) It affects only the spinal nerves in the immediate area of the injection C) It can provide sensory and motor anesthesia, depending on the anesthetic selected

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D) It can provide mainly sensory anesthesia, depending on the anesthetic selected

E) All of the answers are correct

Answer: E

16) Cerebrospinal fluid flows within the

17) The spinal cord continues to elongate until about age

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18) The specialized membranes that surround the spinal cord are termed the A) cranial meninges

19) Blood vessels that supply the spinal cord run along the surface of the A) pia mater

20) Samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle in the

A) dura mater

B) arachnoid mater

C) epidural space

D) subarachnoid space

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E) cerebral ventricles

Answer: D

21) In an adult, the conus medullaris is found at about

22) Bill contracts a viral disease that destroys cells in the posterior gray horns

in his spinal cord As a result, which of the following would you expect?

A) loss of sensation in his torso

B) inability to breathe

C) problems with moving his arms

D) uncontrollable sweating of his feet

E) problems with moving his legs

Answer: A

Bloom’s Taxonomy: Application

23) The white matter of the spinal cord is mainly

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24) The gray horns of the spinal cord contain mainly A) nerve tracts

25) The posterior horns of the spinal cord contain mainly A) sensory nuclei

B) somatic motor nuclei

C) autonomic motor nuclei

D) nerve tracts

E) sympathetic nuclei

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Answer: A

26) The anterior horns of the spinal cord contain mainly

A) sensory nuclei

B) somatic motor nuclei

C) autonomic motor nuclei

D) nerve tracts

E) sympathetic nuclei

Answer: B

27) Nerve tracts or fasciculi make up the

28) In the spinal cord, white matter is separated into ascending and descending tracts organized as

A) nuclei

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29) The outward projections from the central gray matter of the spinal cord are called

30) Axons crossing from one side of the spinal cord to the other within the gray matter are found in the

A) anterior gray horns

B) lateral gray horns

C) posterior gray horns

D) gray commissures

E) white commissures

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Answer: D

31) The white matter of the spinal cord contains

A) bundles of axons with common origins, destinations, and functions B) bundles of dendrites with common origins, destinations, and functions C) sensory and motor nuclei

D) both axons and dendrites

E) interneurons

Answer: A

Figure 13-1 The Spinal Cord

Use Figure 13-1 to answer the following questions:

32) Identify the structure labeled “1.”

A) anterior white column

B) lateral white column

C) lateral white horn

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A) posterior gray column

B) dorsal gray ganglion

C) posterior white column

D) posterior gray horn

E) anterior gray horn

Answer: D

A) anterior white commissure

B) anterior median fissure

C) anterior white column

D) anterior gray commissure

E) anterior white horn

Answer: D

35) What is the function of the structure labeled “12”? A) control of skeletal muscle

B) somatic sensory receiving

C) visceral sensory receiving

D) control of visceral effectors

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E) ascending pathway

Answer: B

36) What is the function of the structure labeled “14”? A) control of skeletal muscle

B) somatic sensory processing

C) control of visceral effectors

D) somatic motor control

E) visceral sensory processing

Answer: C

37) Where do somatic motor neurons reside?

38) Where are the white columns of the spinal cord?

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39) The outermost connective-tissue covering of nerves is the

40) The preganglionic fibers that connect a spinal nerve with an autonomic ganglion in the thoracic and lumbar region of the spinal cord and carries visceral motor fibers that are myelinated form the

A) white rami communicantes

B) gray rami communicantes

C) dorsal ramus

D) ventral ramus

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E) dermatomes

Answer: A

41) The postganglionic fibers that connect an autonomic ganglion in the thoracic or lumbar region with the spinal nerve and contain postganglionic fibers that innervate glands in the body wall or limbs are

42) Postganglionic fibers of the autonomic nervous system that innervate internal organs do not rejoin the spinal nerve but form

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43) Which of the following associations is incorrect?

A) 8 cervical spinal nerves

B) 11 thoracic spinal nerves

C) 5 lumbar spinal nerves

D) 5 sacral spinal nerves

E) 1 coccygeal spinal nerve

Answer: B

44) The of each spinal nerve innervates the skin and muscles of the back

A) white ramus communicantes

B) gray ramus communicantes

45) Muscles of the neck and shoulder are innervated by spinal nerves from the region

A) cervical

B) thoracic

C) lumbar

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D) sacral

E) coccygeal

Answer: A

46) The ventral rami of spinal nerves C5 to T1 contribute fibers to the plexus

47) In which plexus does the ulnar nerve arise?

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48) In the condition , a virus infects dorsal root ganglia, causing a painful rash whose distribution corresponds to that of the affected sensory nerves as seen in their dermatomes

49) The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the

50) Spinal nerves from the sacral region of the cord innervate the muscles

A) shoulder

B) intercostal

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51) The innervates the ventrolateral body surface, structures in the body wall, and the limbs

52) The obturator nerve is distributed to the

A) adductors of the hip

B) skin over the perineum

C) extensors of the hip

D) skin over buttocks

E) biceps femoris

Answer: A

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53) A viral disease that destroys the cells of the anterior gray horn will

A) lead to skeletal muscle weakness or paralysis

B) interfere with position sense

C) mainly interfere with crude touch and temperature sense

D) block autonomic regulation

E) affect visceral motor function

Answer: A

54) The complex, interwoven network formed by contributions from the ventral rami of neighboring spinal nerves is termed a(n)

55) Each of the following nerves originates in the lumbar plexus, except the nerve

A) saphenous

B) sciatic

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56) The nerve, which arises in the cervical plexus, innervates the diaphragm

57) The layer of connective tissue that surrounds individual axons within a peripheral nerve is termed the

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58) The ventral rami form four major plexuses, including all of the

following, except the plexus

59) If a person has a crush injury to the C3-C5 spinal segments, you would expect that he

A) might be unable to breathe on his own

B) could walk without difficulty

C) would have full range of motion in all extremities

D) would be in a coma

E) would have difficulty chewing and moving the tongue

Answer: A

60) As the nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve

A) perineal

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61) Mary is in an automobile accident and suffers a spinal cord injury She has lost feeling in her lower body Her doctor tells her that swelling is compressing

a portion of her spinal cord Which part of her cord is likely to be compressed? A) the anterior gray horns

B) the anterior gray commissures

62) The brachial plexus gives rise to all of the following nerves, except the A) radial

B) median

C) ulnar

D) musculocutaneous

E) phrenic

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Answer: E

Figure 13-2 Spinal Nerves

Use Figure 13-2 to answer the following questions:

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65) Identify the neuron inside the structure labeled “3.” A) preganglionic neuron

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E) ventral root

Answer: C

70) What is the function of the structure labeled “12”?

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A) somatic motor control

B) visceral motor control

C) somatic sensory input

D) visceral sensory input

E) sensory receptor for pain

Answer: B

71) What is the function of the structure labeled “13”?

A) sensory receptor for pain

B) visceral sensory input

C) somatic motor control

D) somatic sensory input

E) visceral motor control

Answer: C

72) Which branch carries motor neurons to structures on the back of the body trunk?

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Answer: A

73) In which structure are sensory cell bodies located?

74) Recognized neuronal circuit patterns include all of the following, except A) convergent

75) All of the following are true of neural reflexes, except that they

A) are automatic motor responses

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B) are the simplest form of behavior

C) help preserve homeostasis

D) cannot be modified by the brain

E) involve at least two neurons

Answer: D

76) Reflexes based on synapses formed during development are reflexes

77) Reflexes can be classified according to all of the following, except A) their development

B) where information processing occurs

C) the motor response

D) the complexity of the neural circuit

E) whether they are sensory or motor

Answer: E

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78) All of the following are true of muscle spindles, except that they

A) are found within skeletal muscle

B) consist of specialized fibers called intrafusal fibers

C) are found in tendons

D) are the receptor for the stretch reflex

E) are innervated by gamma motor neurons

Answer: C

79) The reflex that prevents a muscle from exerting too much tension is the reflex

80) Spinal interneurons inhibit antagonist motor neurons in a process called A) a crossed extensor reflex

B) a stretch reflex

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