Question 1

A patient with no sensation in the left thumb would most likely have nerve damage of the ________ spinal nerve.

Accepted Answer

A)   T1
B)   T5
C)   C5
D)   C6
E)   L3F) C) and D)
G) B) and E)

Question 2

Match the disorder with its description.
-Meningitis

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 D)
G) D) and E)

Question 3

Stimulation of the Golgi tendon organs result in which of the following changes in the reflex arc?

Accepted Answer

A)   Stimulation of a stimulatory interneuron
B)   Stimulation of an inhibitory neuron
C)   Decreased action potentials in alpha motor neurons
D)   Contraction of skeletal muscle fibers
E)   Both "stimulation of an inhibitory neuron" and "decreased action potentials in alpha motor neurons" are correct.F) A) and B)
G) A) and E)

Question 4

Match the term with its correct definition.
-Pia mater

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 B)
G) A) and C)

Question 5

Nerves are held together by ________.

Accepted Answer

The answer of Nerves are held together by ________....

Question 6

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

Accepted Answer

A)   dermatome
B)   plexitome
C)   microtome
D)   myotome
E)   superdomeF) A) and C)
G) B) and D)

Question 7

Stretch reflexes

Accepted Answer

A)   are learned voluntary responses.
B)   aid in maintaining proper posture.
C)   prevent muscles from being damaged by excessive tension.
D)   cause the removal of limbs from painful stimuli.
E)   prevent falling.F) B) and E)
G) B) and C)

Question 8

The epineurium

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 9

Spinal nerves exiting the spinal cord from the level of L4 to S4 form the ________ plexus.

Accepted Answer

A)   lumbar
B)   femoral
C)   sacral
D)   pelvic
E)   brachialF) B) and C)
G) C) and E)

Question 10

Dermatomal maps are important clinically because they

Accepted Answer

A)   can be used to check for motor function.
B)   locate the position of cranial nerves.
C)   can be used to help locate nerve damage.
D)   indicate what muscles are innervated by each spinal nerve.
E)   can be used to detect cranial nerve damage.F) A) and E)
G) A) and D)

Question 11

-What does "E" represent?

Accepted Answer

A)   Spinal nerves
B)   Conus medullaris
C)   Cervical enlargement
D)   Filium terminale
E)   Cauda equinaF) C) and D)
G) A) and D)

Question 12

A reflex that protects limbs by removing them from painful stimuli is the ________ reflex.

Accepted Answer

A)   stretch
B)   crossed extensor
C)   Golgi tendon
D)   alternating
E)   withdrawalF) B) and C)
G) A) and E)

Question 13

The motor root of a spinal nerve is also referred to as the ________ root.

Accepted Answer

A)   afferent
B)   dorsal
C)   posterior
D)   ventral
E)   sensoryF) C) and D)
G) None of the above

Question 14

The brachial plexus supplies nerves that function to contract which of the following?

Accepted Answer

A)   The diaphragm
B)   Intercostal muscles
C)   Muscles of the arm and forearm
D)   Muscles of the lower limb
E)   Abdominal musclesF) A) and B)
G) A) and E)

Question 15

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) A) and B)
F) C) and D)

Question 16

An injury to the wrist that results in edema in the carpal tunnel would compress the ________ nerve.

Accepted Answer

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

Question 17

Glen is complaining of abnormal sensations, such as cold or hot sensations, along his left hip and anterior thigh. His physician suggests that certain nerves may be compressed, causing these sensations. Which of the following are most likely affected?

Accepted Answer

A)   L1 - L2
B)   L3 - L4
C)   T11 - T12
D)   L5 - L6E) A) and C)
F) A) and B)

Question 18

-What does "C" represent?

Accepted Answer

A)   Spinal nerves
B)   Conus medullaris
C)   Cervical enlargement
D)   Filium terminale
E)   Cauda equinaF) None of the above
G) All of the above

Question 19

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 B)
G) None of the above

Question 20

Match the nerve to the correct function.
-Axillary 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) B) and D)
G) B) and E)

Exam 12: Spinal Cord and Spinal Nerves

Stretch reflexes

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-What does "E" represent?

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Spinal nerves exiting the spinal cord from the level of L4 to S4 form the ________ plexus.

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The brachial plexus supplies nerves that function to contract which of the following?

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A reflex that protects limbs by removing them from painful stimuli is the ________ reflex.

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The motor root of a spinal nerve is also referred to as the ________ root.

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A patient with no sensation in the left thumb would most likely have nerve damage of the ________ spinal nerve.

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Stimulation of the Golgi tendon organs result in which of the following changes in the reflex arc?

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The epineurium

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Nerves are held together by ________.

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

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-What does "C" represent?

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Match the disorder with its description. -Meningitis

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Glen is complaining of abnormal sensations, such as cold or hot sensations, along his left hip and anterior thigh. His physician suggests that certain nerves may be compressed, causing these sensations. Which of the following are most likely affected?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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Match the nerve to the correct function. -Axillary nerve

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An injury to the wrist that results in edema in the carpal tunnel would compress the ________ nerve.

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Dermatomal maps are important clinically because they

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Match the term with its correct definition. -Pia mater

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