Question 1

-What does "E" represent?

Accepted Answer

A)  Spinal nerves 
B)  Conus medullaris 
C)  Cervical enlargement 
D)  Filium terminale 
E)  Cauda equina 
A)  Spinal nerves 
B)  Conus medullaris 
C)  Cervical enlargement 
D)  Filium terminale 
E)  Cauda equina

Question 2

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)  sensory 
A)  afferent 
B)  dorsal 
C)  posterior 
D)  ventral 
E)  sensory

Question 3

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. 
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.

Question 4

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 - L6 
A)  L1 - L2 
B)  L3 - L4 
C)  T11 - T12 
D)  L5 - L6

Question 5

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)  L3 
A)  T1 
B)  T5 
C)  C5 
D)  C6 
E)  L3

Question 6

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. 
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.

Question 7

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. 
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.

Question 8

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)  C1 
A)  C2-C8 
B)  T1-T12 
C)  L1-L5 
D)  C1

Question 9

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. 
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.

Question 10

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)  median 
A)  axillary 
B)  radial 
C)  musculocutaneous 
D)  ulnar 
E)  median

Question 11

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 
A)  dermatome 
B)  plexitome 
C)  microtome 
D)  myotome 
E)  superdome

Question 12

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 sensation 
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 sensation

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)  median 
A)  obturator 
B)  common fibular (peroneal) 
C)  tibial 
D)  femoral 
E)  median

Question 14

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 periosteum 
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 periosteum

Question 15

-What does "C" represent?

Accepted Answer

A)  Spinal nerves 
B)  Conus medullaris 
C)  Cervical enlargement 
D)  Filium terminale 
E)  Cauda equina 
A)  Spinal nerves 
B)  Conus medullaris 
C)  Cervical enlargement 
D)  Filium terminale 
E)  Cauda equina

Question 16

Nerves are held together by ________.

Accepted Answer

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

Question 17

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)  withdrawal 
A)  stretch 
B)  crossed extensor 
C)  Golgi tendon 
D)  alternating 
E)  withdrawal

Question 18

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 brachii 
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 brachii

Question 19

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)  brachial 
A)  lumbar 
B)  femoral 
C)  sacral 
D)  pelvic 
E)  brachial

Question 20

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

Exam 12: Spinal Cord and Spinal Nerves

-What does "E" represent?

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

Stretch reflexes

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?

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

The epineurium

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

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

Dermatomal maps are important clinically because they

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

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

Match the disorder with its description. -Meningitis

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

Match the term with its correct definition. -Pia mater

-What does "C" represent?

Nerves are held together by ________.

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

Match the nerve to the correct function. -Axillary nerve

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

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

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