Question 1

Match the term with its correct definition.
-Epidural space

Accepted Answer

A)   Functional unit of the nervous system
B)   Most superficial and thickest meninx
C)   The middle meninx
D)   The meninx bound tightly to brain and spinal cord
E)   Separates dura mater from periosteumF) B) and D)
G) A) and E)

Question 2

Branches of the ________ nerve are anesthetized before a doctor performs an episiotomy for childbirth.

Accepted Answer

A)   genitofemoral
B)   gluteal
C)   cutaneous femoral
D)   pudendal
E)   common fibular (peroneal) F) A) and D)
G) A) and B)

Question 3

Match the nerve or plexus with its appropriate description.
-Coccygeal plexus

Accepted Answer

A)   Innervates the iliopsoas, sartorius, and quadriceps femoris
B)   Innervates muscles of the pelvic floor
C)   Innervates the muscles that adduct the thigh
D)   Innervates the anterior and lateral muscles of the leg
E)   Branches to form the medial and lateral plantar nervesF) A) and E)
G) A) and B)

Question 4

Which of the following nerves is associated with the lumbosacral plexus?

Accepted Answer

A)   Phrenic
B)   Median
C)   Musculocutaneous
D)   Ulnar
E)   ObturatorF) A) and B)
G) B) and C)

Question 5

Match the action with the specific reflex.
-Removing hand from a hot iron

Accepted Answer

A)   Stretch reflex
B)   Golgi tendon reflex
C)   Withdrawal reflex
D)   Crossed extensor reflex
E)   Reciprocal innervationF) All of the above
G) A) and B)

Question 6

Branches of the pudendal nerve are anesthetized during childbirth before the doctor performs a/an ________.

Accepted Answer

The answer of Branches of the pudendal nerve are anesthetized...

Question 7

Match the nerve to the correct function.
-Musculocutaneous nerve

Accepted Answer

A)   Provides motor innervation to the biceps brachii
B)   Innervates two forearm muscles plus most of the intrinsic hand muscles
C)   Innervates all but one of the flexor muscles of the forearm and most of the hand muscles near the thumb
D)   Innervates the deltoid and teres minor muscles
E)   Innervates the triceps brachiiF) A) and B)
G) A) and C)

Question 8

There are ________ enlargements of the spinal cord where nerves supplying the extremities enter and leave.

Accepted Answer

A)   two
B)   three
C)   four
D)   five
E)   sixF) None of the above
G) All of the above

Question 9

What is found in the dorsal root ganglion?

Accepted Answer

A)   The cell bodies of multipolar motor neurons
B)   The cell bodies of pseudo-unipolar sensory neurons
C)   The cell bodies of multipolar interneurons
D)   The cell bodies of bipolar sensory neuronsE) C) and D)
F) None of the above

Question 10

Which of the following is not a property of reflexes?

Accepted Answer

A)   Reflex responses are very predictable.
B)   Reflexes are responses to sensory inputs.
C)   Reflexes are quick responses of the nervous system.
D)   Reflexes are not voluntary.
E)   Reflexes do not require a stimulus.F) A) and E)
G) A) and D)

Question 11

Damage to C5 and C6 spinal nerves would result in abnormal sensations along the anterior surface of the upper limb.

Accepted Answer

A) True 
 B)False

Question 12

What space, found between the vertebral wall and the dura mater, is the area for injecting anesthesia for childbirth?

Accepted Answer

A)   Subarachnoid space
B)   Subdural space
C)   Epidural space
D)   Epipial spaceE) All of the above
F) B) and C)

Question 13

-Label component "B" of the reflex arc.

Accepted Answer

A)   Sensory receptor
B)   Effector organ
C)   Sensory neuron
D)   Motor neuron
E)   InterneuronF) B) and C)
G) A) and B)

Question 14

Reciprocal innervation

Accepted Answer

A)   is associated with the Golgi tendon reflex.
B)   stimulates antagonistic muscles.
C)   results in reduced resistance to the reflex.
D)   reinforces the withdrawal reflex.
E)   inhibits the stretch reflex.F) None of the above
G) A) and C)

Question 15

Which nerve is involved when a dancer points his/her toes?

Accepted Answer

A)   Tibial
B)   Femoral
C)   Obturator
D)   Pudendal
E)   Common fibular (peroneal) F) A) and B)
G) B) and E)

Question 16

Match the nerve to the correct function.
-Ulnar nerve

Accepted Answer

A)   Provides motor innervation to the biceps brachii
B)   Innervates two forearm muscles plus most of the intrinsic hand muscles
C)   Innervates all but one of the flexor muscles of the forearm and most of the hand muscles near the thumb
D)   Innervates the deltoid and teres minor muscles
E)   Innervates the triceps brachiiF) C) and E)
G) A) and C)

Question 17

The sensory receptor of the stretch reflex is the ________.

Accepted Answer

A)   Golgi tendon organ
B)   muscle spindle
C)   dorsal root ganglion
D)   collateral axon
E)   alpha motor neuronsF) None of the above
G) A) and C)

Question 18

The spinal cord ends at the ________.

Accepted Answer

A)   sacrum
B)   coccyx
C)   5th lumbar vertebrae
D)   2nd lumbar vertebraeE) B) and C)
F) All of the above

Question 19

Place the following parts of a reflex arc in the correct order beginning with the sensory receptor.
(1)  Motor neuron
(2)  Interneuron
(3)  Effector
(4)  Sensory neuron
(5)  Sensory receptor

Accepted Answer

A)   5, 1, 2, 3, 4
B)   5, 3, 2, 4, 1
C)   5, 4, 3, 2, 1
D)   5, 2, 3, 4, 1
E)   5, 4, 2, 1, 3F) B) and E)
G) D) and E)

Question 20

Which structure anchors the thecal sac and conus medullaris to the coccyx?

Accepted Answer

A)   Filum terminale
B)   Denticulate ligaments
C)   Pia mater
D)   Cauda equinaE) B) and C)
F) B) and D)

Exam 12: Spinal Cord and Spinal Nerves

The spinal cord ends at the ________.

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-Label component "B" of the reflex arc.

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Branches of the ________ nerve are anesthetized before a doctor performs an episiotomy for childbirth.

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Reciprocal innervation

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Match the action with the specific reflex. -Removing hand from a hot iron

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There are ________ enlargements of the spinal cord where nerves supplying the extremities enter and leave.

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Match the nerve to the correct function. -Musculocutaneous nerve

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What space, found between the vertebral wall and the dura mater, is the area for injecting anesthesia for childbirth?

Correct AnswerverifiedShow Answer

What is found in the dorsal root ganglion?

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Which nerve is involved when a dancer points his/her toes?

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Which of the following is not a property of reflexes?

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Match the term with its correct definition. -Epidural space

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Place the following parts of a reflex arc in the correct order beginning with the sensory receptor. (1) Motor neuron (2) Interneuron (3) Effector (4) Sensory neuron (5) Sensory receptor

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The sensory receptor of the stretch reflex is the ________.

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Match the nerve to the correct function. -Ulnar nerve

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Which of the following nerves is associated with the lumbosacral plexus?

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Branches of the pudendal nerve are anesthetized during childbirth before the doctor performs a/an ________.

Correct AnswerverifiedShow Answer

Match the nerve or plexus with its appropriate description. -Coccygeal plexus

Correct AnswerverifiedShow Answer

Damage to C5 and C6 spinal nerves would result in abnormal sensations along the anterior surface of the upper limb.

Correct AnswerverifiedShow Answer

Which structure anchors the thecal sac and conus medullaris to the coccyx?

Correct AnswerverifiedShow Answer

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