Question 1

Match the term with the correct definition.
-reflex arc

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) All of the above
G) D) and E)

Question 2

Match the nerve with the appropriate description.
-femoral nerve

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 D)
G) B) and C)

Question 3

In the spinal cord, white matter is organized into

Accepted Answer

A)   horns and the gray matter into columns.
B)   horns and the gray matter into roots.
C)   columns and the gray matter into horns.
D)   columns and the gray matter into tracts.E) B) and C)
F) A) and B)

Question 4

The ventral root of a spinal nerve contains

Accepted Answer

A)   only sensory fibers.
B)   only motor fibers.
C)   only afferent fibers.
D)   both sensory and motor fibers.
E)   a ganglion.F) C) and D)
G) None of the above

Question 5

What does "D" represent?

Accepted Answer

A)   central canal
B)   ventral root
C)   dorsal root ganglion
D)   spinal nerve
E)   dorsal rootF) B) and E)
G) A) and C)

Question 6

Which of the following combinations indicates the correct distribution of spinal nerve pairs?

Accepted Answer

A)   7 cervical - 12 thoracic - 6 lumbar - 5 sacral - 1 coccygeal
B)   7 cervical - 12 thoracic - 5 lumbar - 6 sacral - 1 coccygeal
C)   8 cervical - 12 thoracic - 6 lumbar - 4 sacral - 1 coccygeal
D)   8 cervical - 12 thoracic - 5 lumbar - 5 sacral - 1 coccygeal
E)   7 cervical - 13 thoracic - 6 lumbar - 5 sacral - 1 coccygealF) B) and D)
G) C) and D)

Question 7

Match the nerve with the appropriate description.
-common fibular nerve

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 B)
G) A) and C)

Question 8

What does "C" represent?

Accepted Answer

A)   central canal
B)   ventral root
C)   dorsal root ganglion
D)   spinal nerve
E)   dorsal rootF) A) and D)
G) All of the above

Question 9

The middle, thin, spider-like meninx is the

Accepted Answer

A)   dura mater.
B)   pia mater.
C)   ectomater.
D)   arachnoid mater.E) B) and C)
F) A) and C)

Question 10

Using the biceps brachii to flex the forearm requires innervation of the _____ nerve.

Accepted Answer

A)   radial
B)   musculocutaneous
C)   ulnar
D)   median
E)   axillaryF) C) and D)
G) A) and B)

Question 11

What does "E" represent?

Accepted Answer

A)   spinal nerves
B)   conus medullaris
C)   cervical enlargement
D)   filium terminale
E)   cauda equinaF) A) and E)
G) B) and D)

Question 12

Damage to the phrenic nerve would result in

Accepted Answer

A)   the loss of motor activity in the arms.
B)   an increased heart rate.
C)   an inability to swallow.
D)   difficulty breathing.
E)   a decreased heart rate.F) A) and D)
G) B) and D)

Question 13

Match the nerve with the appropriate description.
-tibial nerve

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) B) and E)
G) A) and C)

Question 14

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 D)
G) All of the above

Question 15

Intercostal nerves are formed from the

Accepted Answer

A)   thoracic plexus.
B)   ventral rami of thoracic spinal nerves.
C)   dorsal rami of thoracic spinal nerves.
D)   rami communicans of the thoracic spinal nerves.
E)   cervical plexus.F) All of the above
G) B) and E)

Question 16

A collapsed intervertebral foramen could affect all of the following spinal nerves EXCEPT

Accepted Answer

A)   C2-C8
B)   T1-T12
C)   L1-L5
D)   C1E) C) and D)
F) B) and C)

Question 17

What does "D" represent?

Accepted Answer

A)   spinal nerves
B)   conus medullaris
C)   cervical enlargement
D)   filium terminale
E)   cauda equinaF) A) and E)
G) A) and B)

Question 18

What structure makes the dorsal root different from the ventral root?

Accepted Answer

A)   The dorsal root has a ganglion.
B)   The dorsal root has a tract.
C)   The dorsal root has a nucleus.
D)   The dorsal root appears the same as the ventral root.E) All of the above
F) C) and D)

Question 19

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 E)

Question 20

Match the term with the most appropriate description.
-a reflex that helps prevent falls

Accepted Answer

A)  stretch reflex
B)  Golgi tendon reflex
C)  withdrawal reflex
D)  crossed extensor reflex
E)  reciprocal innervationF) A) and B)
G) A) and E)

Exam 12: Spinal Cord and Spinal Nerves

In the spinal cord, white matter is organized into

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What does "C" represent?

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The middle, thin, spider-like meninx is the

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What does "D" represent?

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

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Match the term with the most appropriate description. -a reflex that helps prevent falls

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The ventral root of a spinal nerve contains

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Match the nerve with the appropriate description. -common fibular nerve

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Using the biceps brachii to flex the forearm requires innervation of the _____ nerve.

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A collapsed intervertebral foramen could affect all of the following spinal nerves EXCEPT

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What does "E" represent?

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Intercostal nerves are formed from the

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Damage to the phrenic nerve would result in

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Match the nerve with the appropriate description. -femoral nerve

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Match the nerve with the appropriate description. -tibial nerve

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Match the term with the correct definition. -reflex arc

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Match the nerve to the correct function. -musculocutaneous nerve

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Which of the following combinations indicates the correct distribution of spinal nerve pairs?

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What does "D" represent?

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What structure makes the dorsal root different from the ventral root?

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