Question 1

The cutaneous sensory distribution of a spinal nerve can be mapped as a

Accepted Answer

A)   dermatome.
B)   plexitome.
C)   microtome.
D)   myotome.
E)   superdome.F) C) and E)
G) A) and D)

Question 2

Which of the following statements concerning the structure of spinal nerves is true?

Accepted Answer

A)   The ventral root contains motor or efferent fibers.
B)   The ventral root has a prominent root ganglion.
C)   Rootlets from the surface of the spinal cord form the dorsal and ventral rami.
D)   Each spinal nerve is formed by the union of a cranial nerve and a spinal nerve.
E)   Spinal nerves do not have specific cutaneous distributions.F) B) and E)
G) A) and C)

Question 3

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 E)
G) B) and C)

Question 4

Improper use of crutches could cause compression of the _____ nerve.

Accepted Answer

A)   axillary
B)   radial
C)   musculocutaneous
D)   ulnar
E)   medianF) B) and C)
G) None of the above

Question 5

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 neurons.E) B) and D)
F) A) and D)

Question 6

Match the nerve with the appropriate description.
-obturator 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 E)

Question 7

The perineurium

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)   bundles fascicles into axons.F) B) and E)
G) A) and B)

Question 8

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 C)
G) None of the above

Question 9

Muscles and glands that are capable of producing a response when stimulated by motor neurons are called

Accepted Answer

A)   aponeuroses.
B)   effectors.
C)   neuromodulators.
D)   receptors.
E)   sensory organs.F) All of the above
G) C) and E)

Question 10

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) C) and D)
G) A) and C)

Question 11

When a person hits their funny bone, they cause temporary damage to the _____ nerve.

Accepted Answer

A)   axillary
B)   radial
C)   musculocutaneous
D)   ulnar
E)   medianF) A) and E)
G) C) and D)

Question 12

Spinal nerves C5-T1 make up the ____________ plexus.

Accepted Answer

A)   sacral
B)   lumbar
C)   brachial
D)   cervical
E)   radialF) D) and E)
G) A) and D)

Question 13

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

Question 14

Match the term with the most appropriate description.
-the knee-jerk

Accepted Answer

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

Question 15

Which of the following nerves is part of the brachial plexus?

Accepted Answer

A)   peroneal
B)   ansa cervicalis
C)   ischiadic (sciatic) 
D)   musculocutaneous
E)   femoralF) B) and C)
G) A) and E)

Question 16

Match the disorder with its description.
-sciatica

Accepted Answer

A)  pain radiating down the back of the thigh and leg
B)  stiffness in the neck and headache
C)  inflammation of a nerve
D)  pain along a nerve tract
E)  loss of sensationF) A) and B)
G) A) and C)

Question 17

What does "E" represent?

Accepted Answer

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

Question 18

The adaptive significance of the crossed extensor reflex when a person steps on a tack is to

Accepted Answer

A)   remove the foot from the tack.
B)   increase the rate at which withdrawal of the limb occurs.
C)   slow the rate of removal of the foot from the tack.
D)   reduce the pain sensations.
E)   prevent the person from falling down.F) None of the above
G) B) and C)

Question 19

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

Question 20

Match the term with the most appropriate description.
-associated with withdrawal and stretch reflex

Accepted Answer

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

Exam 12: Spinal Cord and Spinal Nerves

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.

Correct AnswerverifiedShow Answer

When a person hits their funny bone, they cause temporary damage to the _____ nerve.

Correct AnswerverifiedShow Answer

The endoneurium

Correct AnswerverifiedShow Answer

Match the term with the most appropriate description. -the knee-jerk

Correct AnswerverifiedShow Answer

Which of the following nerves is part of the brachial plexus?

Correct AnswerverifiedShow Answer

Match the term with the most appropriate description. -associated with withdrawal and stretch reflex

Correct AnswerverifiedShow Answer

What does "E" represent?

Correct AnswerverifiedShow Answer

Match the disorder with its description. -sciatica

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The perineurium

Correct AnswerverifiedShow Answer

What is found in the dorsal root ganglion?

Correct AnswerverifiedShow Answer

The adaptive significance of the crossed extensor reflex when a person steps on a tack is to

Correct AnswerverifiedShow Answer

Muscles and glands that are capable of producing a response when stimulated by motor neurons are called

Correct AnswerverifiedShow Answer

Spinal nerves C5-T1 make up the ____________ plexus.

Correct AnswerverifiedShow Answer

Improper use of crutches could cause compression of the _____ nerve.

Correct AnswerverifiedShow Answer

Which of the following statements concerning the structure of spinal nerves is true?

Correct AnswerverifiedShow Answer

Match the nerve with the appropriate description. -obturator nerve

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The cutaneous sensory distribution of a spinal nerve can be mapped as a

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified