Question 1

-What does "C" represent?

Accepted Answer

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

Question 2

The reflex that prevents excessive tension in a muscle is the

Accepted Answer

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

Question 3

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 4

Which of the following nerves is a branch of both the cervical plexus and the brachial plexus?

Accepted Answer

A)  axillary
B)  femoral
C)  phrenic
D)  sciatic
E)  splanchnicF) A) and C)
G) A) and E)

Question 5

The gastrocnemius muscle is most likely to be innervated by the _____ nerve.

Accepted Answer

A)  obturator
B)  common fibular (peroneal) 
C)  tibial
D)  femoral
E)  medianF) C) and D)
G) A) and B)

Question 6

-What does "E" represent?

Accepted Answer

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

Question 7

During a spinal tap,cerebrospinal fluid is obtained from which of the following locations?

Accepted Answer

A)  dural sinus
B)  epidural space
C)  subarachnoid space
D)  subdural space
E)  sagittal sinusF) A) and E)
G) D) and E)

Question 8

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) B) and D)
G) C) and D)

Question 9

-Label component "B" on the reflex arc.

Accepted Answer

A)  sensory receptor
B)  effector organ
C)  sensory neuron
D)  motor neuron
E)  interneuronF) C) and D)
G) A) and D)

Question 10

Reflexes

Accepted Answer

A)  are homeostatic.
B)  are not homeostatic.
C)  are voluntary conscious responses to a stimulus.
D)  are integrated in the spinal cord,but not the brain.
E)  are integrated in the brain,but not the spinal cord.F) A) and E)
G) None of the above

Question 11

The endoneurium

Accepted Answer

A)  surrounds nerve cell bodies.
B)  surrounds individual axons and their Schwann cells.
C)  bundles axons into fascicles.
D)  bundles fascicles into nerves.
E)  surrounds nerve tracts in the spinal cord.F) A) and E)
G) A) and D)

Question 12

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 13

When a person sits on a hard surface for a period of time,his foot or leg may "go to sleep." This sensation is the result of compressing the _____ nerve.

Accepted Answer

A)  femoral
B)  sciatic
C)  obturator
D)  pudendal
E)  ulnarF) A) and B)
G) C) and D)

Question 14

Match the nerve with the 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) All of the above
G) B) and E)

Question 15

Match the term with the most appropriate description.
-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) A) and B)
G) B) and E)

Question 16

-Label component "C" on the reflex arc.

Accepted Answer

A)  sensory receptor
B)  effector organ
C)  sensory neuron
D)  motor neuron
E)  interneuronF) C) and D)
G) A) and C)

Question 17

The sac surrounding the spinal cord is the

Accepted Answer

A)  dural sac.
B)  meningeal sac.
C)  thecal sac.
D)  epidural sac.E) B) and C)
F) All of the above

Question 18

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) C) and D)
G) None of the above

Question 19

Match the term with the 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) A) and D)
G) B) and C)

Question 20

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) A) and D)
G) B) and E)

Exam 12: Spinal Cord and Spinal Nerves

The gastrocnemius muscle is most likely to be innervated by the _____ nerve.

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The ventral root of a spinal nerve contains

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Match the term with the correct definition. -reflex arc

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When a person sits on a hard surface for a period of time,his foot or leg may "go to sleep." This sensation is the result of compressing the _____ nerve.

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-What does "C" represent?

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-Label component "C" on the reflex arc.

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

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The endoneurium

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During a spinal tap,cerebrospinal fluid is obtained from which of the following locations?

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The sac surrounding the spinal cord is the

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Match the term with the correct definition. -epidural space

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Reflexes

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Match the term with the most appropriate description. -removing hand from a hot iron

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-Label component "B" on the reflex arc.

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Branches of the pudendal nerve are anesthetized during childbirth before the doctor performs a(an)_______________.

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Match the nerve with the appropriate description. -coccygeal plexus

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Which of the following nerves is a branch of both the cervical plexus and the brachial plexus?

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The reflex that prevents excessive tension in a muscle is the

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

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-What does "E" represent?

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