Question 1

As_______ the nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve.

Accepted Answer

A)   femoral
B)   pudendal
C)   brachial
D)   sciatic
E)   perinealF) A) and C)
G) None of the above

Question 2

Reflexes can be classified according to all of the following, except

Accepted Answer

A)   their development.
B)   the complexity of the neural circuit.
C)   the motor response.
D)   where information processing occurs.
E)   whether they are sensory or motor.F) A) and E)
G) None of the above

Question 3

Cerebrospinal fluid flows within the

Accepted Answer

A)   arachnoid mater.
B)   pia mater.
C)   dura mater.
D)   subarachnoid space.
E)   filum terminale.F) A) and B)
G) A) and E)

Question 4

The gray horns of the spinal cord contain mainly

Accepted Answer

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

Question 5

Blood vessels traveling within the __________deliver oxygen and nutrients to the spinal cord.

Accepted Answer

The answer of Blood vessels traveling within the __________deliver oxygen...

Question 6

Visceral reflexes provide a mechanism for control of the abdominal muscles

Accepted Answer

A) True 
 B)False

Question 7

The ______reflex complements the flexor reflex by activating contralateral muscles.

Accepted Answer

A)   tendon
B)   crossed extensor
C)   stretch
D)   reciprocal
E)   flexorF) C) and D)
G) B) and C)

Question 8

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The flexor reflex

Accepted Answer

A)   prevents a muscle from generating damaging tension.
B)   prevents a muscle from overstretching.
C)   moves a limb away from a painful stimulus.
D)   usually depends on cranial neurons.
E)   is an example of a monosynaptic reflex.F) A) and B)
G) A) and C)

Question 9

The most complicated spinal reflexes are called________

Accepted Answer

intersegme...

Question 10

The stretch reflex

Accepted Answer

A)   involves a receptor called the Golgi tendon organ.
B)   is important in regulating muscle length.
C)   is an example of a polysynaptic reflex.
D)   is activated when a skeletal muscle lengthens.
E)   both B and DF) B) and D)
G) A) and B)

Question 11

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

A)   sympathetic ganglion
B)   rami communicantes
C)   dorsal root ganglion
D)   ventral root
E)   autonomic nerveF) B) and D)
G) B) and C)

Question 12

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-What is the function of the structure labeled "14"?

Accepted Answer

A)   control of skeletal muscle
B)   somatic motor control
C)   visceral sensory processing
D)   control of visceral effectors
E)   somatic sensory processingF) A) and B)
G) A) and C)

Question 13

The neural "wiring" of a single reflex is called an)___________

Accepted Answer

The answer of The neural "wiring" of a single reflex...

Question 14

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The ventral rami form four major plexuses, including all of the following, except the_______ plexus.

Accepted Answer

A)   lumbar
B)   cervical
C)   nuchal
D)   brachial
E)   sacralF) None of the above
G) A) and B)

Question 15

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

Accepted Answer

The dorsal roots contain axons of sensor...

Question 16

A complex, interwoven network of nerves is called an)__________

Accepted Answer

The answer of A complex, interwoven network of nerves is...

Question 17

Sometimes, when it is difficult to initiate a knee- jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and involuntary reflex movement?

Accepted Answer

Descending motor tracts that excite the ...

Question 18

The _________separates the dura mater from the walls of the vertebral canal.

Accepted Answer

The answer of The _________separates the dura mater from the...

Question 19

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-All of the following are true of polysynaptic reflexes, except that they

Accepted Answer

A)   have reverberating circuits that prolong the reflexive motor response.
B)   are intersegmental in distribution.
C)   are arranged according to dermatomes.
D)   involve pools of interneurons.
E)   involve reciprocal innervation.F) D) and E)
G) A) and E)

Question 20

Spinal interneurons inhibit antagonist motor neurons in a process called

Accepted Answer

A)   reverberating circuits.
B)   a crossed extensor reflex.
C)   reciprocal inhibition.
D)   a stretch reflex.
E)   a tendon reflex.F) A) and E)
G) None of the above

Exam 12: The Spinal Cord, Spinal Nerves, and Spinal Reflexes

Reflexes can be classified according to all of the following, except

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The neural "wiring" of a single reflex is called an)___________

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The most complicated spinal reflexes are called________

Correct Answerverifiedintersegme...View AnswerShow Answer

The gray horns of the spinal cord contain mainly

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Cerebrospinal fluid flows within the

Correct AnswerverifiedShow Answer

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The ventral rami form four major plexuses, including all of the following, except the_______ plexus.

Correct AnswerverifiedShow Answer

Visceral reflexes provide a mechanism for control of the abdominal muscles

Correct AnswerverifiedShow Answer

Sometimes, when it is difficult to initiate a knee- jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and involuntary reflex movement?

Correct AnswerverifiedDescending motor tracts that excite the ...View AnswerShow Answer

A complex, interwoven network of nerves is called an)__________

Correct AnswerverifiedShow Answer

The _________separates the dura mater from the walls of the vertebral canal.

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The stretch reflex

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As_______ the nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve.

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

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -Identify the structure labeled "6."

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Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The flexor reflex

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Spinal interneurons inhibit antagonist motor neurons in a process called

Correct AnswerverifiedShow Answer

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -All of the following are true of polysynaptic reflexes, except that they

Correct AnswerverifiedShow Answer

Blood vessels traveling within the __________deliver oxygen and nutrients to the spinal cord.

Correct AnswerverifiedShow Answer

The ______reflex complements the flexor reflex by activating contralateral muscles.

Correct AnswerverifiedShow Answer

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -What is the function of the structure labeled "14"?

Correct AnswerverifiedShow Answer

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Descending motor tracts that excite the ...
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The dorsal roots contain axons of sensor...
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