Question 1

Spinal nerves from the sacral region of the cord innervate the ________ muscles.

Accepted Answer

A)  shoulder
B)  intercostal
C)  abdominal
D)  leg
E)  facialF) None of the above
G) All of the above

Question 2

What would happen if the dorsal root of a spinal nerve were completely transected?

Accepted Answer

The dorsal roots contain axons of sensor...

Question 3

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

Accepted Answer

A)  dorsal rami.
B)  ventral rami.
C)  white rami.
D)  gray rami.
E)  sympathetic nerves.F) A) and D)
G) A) and E)

Question 4

The nerve crucial for breathing that originates within the cervical plexus is called the ________ nerve.

Accepted Answer

The answer of The nerve crucial for breathing that originates...

Question 5

The spinal cord is part of the

Accepted Answer

A)  peripheral nervous system.
B)  somatic nervous system.
C)  central nervous system.
D)  autonomic nervous system.
E)  afferent nervous system.F) A) and D)
G) All of the above

Question 6

Blood vessels that supply the spinal cord run along the surface of the

Accepted Answer

A)  pia mater.
B)  dura mater.
C)  epidural space.
D)  subdural space.
E)  subarachnoid space.F) B) and D)
G) A) and C)

Question 7

Which of the following is true regarding an epidural block?

Accepted Answer

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.
D)  It can provide mainly sensory anesthesia,depending on the anesthetic selected.
E)  All of the answers are correct.F) A) and E)
G) B) and E)

Question 8

The anterior horns of the spinal cord contain mainly

Accepted Answer

A)  sensory nuclei.
B)  somatic motor nuclei.
C)  autonomic motor nuclei.
D)  nerve tracts.
E)  sympathetic nuclei.F) A) and E)
G) B) and C)

Question 9

The posterior horns of the spinal cord contain mainly

Accepted Answer

A)  sensory nuclei.
B)  somatic motor nuclei.
C)  autonomic motor nuclei.
D)  nerve tracts.
E)  sympathetic nuclei.F) A) and B)
G) None of the above

Question 10

The dorsal root contains ________ neurons.

Accepted Answer

The answer of The dorsal root contains ________ neurons....

Question 11

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?

Accepted Answer

A)  the anterior gray horns
B)  the anterior gray commissures
C)  ascending tracts
D)  descending tracts
E)  the anterior white commissuresF) A) and B)
G) None of the above

Question 12

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

Accepted Answer

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.F) B) and D)
G) D) and E)

Question 13

Figure 13-2 Spinal Nerves
Use Figure 13-2 to answer the following questions:
-Identify the structure labeled "2."

Accepted Answer

A)  ventral root
B)  dorsal ramus
C)  spinal nerve
D)  ventral ramus
E)  white ramusF) A) and B)
G) A) and C)

Question 14

The gray horns of the spinal cord contain mainly

Accepted Answer

A)  nerve tracts.
B)  columns.
C)  meninges.
D)  nerve cell bodies.
E)  funiculi.F) B) and D)
G) B) and C)

Question 15

If the dorsal root of a spinal nerve is severed,

Accepted Answer

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.
D)  the brain would not be able to communicate with that level of the spinal cord.
E)  sensory input would be blocked.F) B) and C)
G) A) and C)

Question 16

Figure 13-1 The Spinal Cord
Use Figure 13-1 to answer the following questions:
-Identify the structure labeled "10."

Accepted Answer

A)  anterior white commissure
B)  anterior median fissure
C)  anterior white column
D)  anterior gray commissure
E)  anterior white hornF) A) and E)
G) B) and E)

Question 17

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

Accepted Answer

A)  anterior gray horns.
B)  lateral gray horns.
C)  posterior gray horns.
D)  gray commissures.
E)  white commissures.F) C) and E)
G) A) and E)

Question 18

After age ________ the vertebral column continues to elongate,but the spinal cord itself does not.

Accepted Answer

A)  8
B)  12
C)  18
D)  4
E)  1F) B) and E)
G) D) and E)

Question 19

Figure 13-1 The Spinal Cord
Use Figure 13-1 to answer the following questions:
-Where are the white columns of the spinal cord?

Accepted Answer

A)  4,5,6
B)  1,2,3
C)  7,11
D)  12,13
E)  8F) None of the above
G) B) and E)

Question 20

Suppose that you feel something brushing against your abdomen.The sensory information would be carried to the spinal cord over a ________ ramus.

Accepted Answer

The answer of Suppose that you feel something brushing against...

Exam 13: The Spinal Cord, spinal Nerves, and Spinal Reflexes

The nerve crucial for breathing that originates within the cervical plexus is called the ________ nerve.

Correct AnswerverifiedShow Answer

Blood vessels that supply the spinal cord run along the surface of the

Correct AnswerverifiedShow Answer

The posterior horns of the spinal cord contain mainly

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -Identify the structure labeled "10."

Correct AnswerverifiedShow Answer

What would happen if the dorsal root of a spinal nerve were completely transected?

Correct AnswerverifiedThe dorsal roots contain axons of sensor...View AnswerShow Answer

Suppose that you feel something brushing against your abdomen.The sensory information would be carried to the spinal cord over a ________ ramus.

Correct AnswerverifiedShow Answer

The gray horns of the spinal cord contain mainly

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The anterior horns of the spinal cord contain mainly

Correct AnswerverifiedShow Answer

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Identify the structure labeled "2."

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The dorsal root contains ________ neurons.

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Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -Where are the white columns of the spinal cord?

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

Correct AnswerverifiedShow Answer

If the dorsal root of a spinal nerve is severed,

Correct AnswerverifiedShow Answer

After age ________ the vertebral column continues to elongate,but the spinal cord itself does not.

Correct AnswerverifiedShow Answer

The spinal cord is part of the

Correct AnswerverifiedShow Answer

Spinal nerves from the sacral region of the cord innervate the ________ muscles.

Correct AnswerverifiedShow Answer

Which of the following is true regarding an epidural block?

Correct AnswerverifiedShow Answer

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The dorsal roots contain axons of sensor...
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