Question 1

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 nerves 
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 nerves

Question 2

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

Accepted Answer

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

Question 3

Reflexes function in

Accepted Answer

A)  removing the body from painful stimuli. 
B)  keeping the body from falling. 
C)  maintaining blood pressure. 
D)  maintaining blood CO2 levels. 
E)  All of these choices are correct. 
A)  removing the body from painful stimuli. 
B)  keeping the body from falling. 
C)  maintaining blood pressure. 
D)  maintaining blood CO2 levels. 
E)  All of these choices are correct.

Question 4

A man was in an accident and severed his spinal cord between C6 and C7. Which of the following would NOT occur?

Accepted Answer

A)  loss of sensation in the trunk below the shoulders, the lower limbs and portions of the arms 
B)  loss of use of the phrenic nerves and paralysis of the diaphragm 
C)  loss of movement in the lower limbs 
D)  loss of the use of the intercostals nerves, and breathing would be affected because the intercostals muscles would be paralyzed 
E)  loss of sensation and movement in the jaw 
A)  loss of sensation in the trunk below the shoulders, the lower limbs and portions of the arms 
B)  loss of use of the phrenic nerves and paralysis of the diaphragm 
C)  loss of movement in the lower limbs 
D)  loss of the use of the intercostals nerves, and breathing would be affected because the intercostals muscles would be paralyzed 
E)  loss of sensation and movement in the jaw

Question 5

Match the term with the correct definition.
-dura 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 6

When someone taps you on your shoulder, they stimulate the ____ nerve.

Accepted Answer

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

Question 7

Damage to which of these nerves would be most life-threatening?

Accepted Answer

A)  median nerves 
B)  phrenic nerves 
C)  lumbar nerves 
D)  sciatic nerves 
E)  radial nerves 
A)  median nerves 
B)  phrenic nerves 
C)  lumbar nerves 
D)  sciatic nerves 
E)  radial nerves

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. 
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 9

Which of the following is false?

Accepted Answer

A)  The dorsal root of the spinal cord conveys sensory (afferent) nerve impulses to the spinal cord. 
B)  The posterior horn of the cord contains the cell bodies of motor neurons. 
C)  The ventral root is formed by the axons of neurons in the lateral and anterior horns. 
D)  The dorsal and ventral roots unite to form spinal nerves. 
E)  The ventral root of the spinal cord conveys motor (efferent) nerve impulses away from the spinal cord. 
A)  The dorsal root of the spinal cord conveys sensory (afferent) nerve impulses to the spinal cord. 
B)  The posterior horn of the cord contains the cell bodies of motor neurons. 
C)  The ventral root is formed by the axons of neurons in the lateral and anterior horns. 
D)  The dorsal and ventral roots unite to form spinal nerves. 
E)  The ventral root of the spinal cord conveys motor (efferent) nerve impulses away from the spinal cord.

Question 10

Place the following parts of a reflex arc in the correct order beginning with the sensory receptor. (1) motor neuron
(2) interneuron
(3) effector
(4) sensory neuron
(5) sensory receptor

Accepted Answer

A)  5, 1, 2, 3, 4 
B)  5, 3, 2, 4, 1 
C)  5, 4, 3, 2, 1 
D)  5, 2, 3, 4, 1 
E)  5, 4, 2, 1, 3 
A)  5, 1, 2, 3, 4 
B)  5, 3, 2, 4, 1 
C)  5, 4, 3, 2, 1 
D)  5, 2, 3, 4, 1 
E)  5, 4, 2, 1, 3

Question 11

Structurally, the simplest reflex is the

Accepted Answer

A)  stretch reflex. 
B)  Golgi tendon reflex. 
C)  reciprocal reflex. 
D)  alternating reflex. 
E)  withdrawal reflex. 
A)  stretch reflex. 
B)  Golgi tendon reflex. 
C)  reciprocal reflex. 
D)  alternating reflex. 
E)  withdrawal reflex.

Question 12

Match the nerve to the correct function.
-radial 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 13

The cross-sectional view of the spinal cord reveals white matter on the

Accepted Answer

A)  inside, gray matter on the outside, and a dorsal motor root. 
B)  outside, gray matter on the inside, and a ventral motor root. 
C)  inside, gray matter on the outside, and a dorsal sensory root. 
D)  outside, gray matter on the inside, and a ventral sensory root. 
A)  inside, gray matter on the outside, and a dorsal motor root. 
B)  outside, gray matter on the inside, and a ventral motor root. 
C)  inside, gray matter on the outside, and a dorsal sensory root. 
D)  outside, gray matter on the inside, and a ventral sensory root.

Question 14

The spinal cord begins at the

Accepted Answer

A)  cerebellum. 
B)  medulla oblongata. 
C)  foramen magnum. 
D)  conus medullaris 
E)  1st cervical vertebrae. 
A)  cerebellum. 
B)  medulla oblongata. 
C)  foramen magnum. 
D)  conus medullaris 
E)  1st cervical vertebrae.

Question 15

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

Accepted Answer

The answer of Branches of the pudendal nerve are anesthetized...

Question 16

What does "B" represent?

Accepted Answer

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

Question 17

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 innervation 
A) stretch reflex 
B) Golgi tendon reflex 
C) withdrawal reflex 
D) crossed extensor reflex 
E) reciprocal innervation

Question 18

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 19

Initiating the withdrawal reflex in both legs at the same time would cause one to

Accepted Answer

A)  maintain posture longer. 
B)  fall. 
C)  decrease muscle tension. 
D)  develop resistance in one limb and reduce resistance in the other. 
E)  hop. 
A)  maintain posture longer. 
B)  fall. 
C)  decrease muscle tension. 
D)  develop resistance in one limb and reduce resistance in the other. 
E)  hop.

Question 20

The sciatic nerve is composed of the

Accepted Answer

A)  femoral nerve and the tibial nerve. 
B)  tibial nerve and the common fibular nerve. 
C)  femoral nerve and the obturator nerve. 
D)  common fibular nerve and the pudendal nerve. 
E)  superior gluteal and inferior gluteal. 
A)  femoral nerve and the tibial nerve. 
B)  tibial nerve and the common fibular nerve. 
C)  femoral nerve and the obturator nerve. 
D)  common fibular nerve and the pudendal nerve. 
E)  superior gluteal and inferior gluteal.

Exam 12: Spinal Cord and Spinal Nerves

Match the nerve with the appropriate description. -coccygeal plexus

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

Reflexes function in

A man was in an accident and severed his spinal cord between C6 and C7. Which of the following would NOT occur?

Match the term with the correct definition. -dura mater

When someone taps you on your shoulder, they stimulate the ____ nerve.

Damage to which of these nerves would be most life-threatening?

The epineurium

Which of the following is false?

Place the following parts of a reflex arc in the correct order beginning with the sensory receptor. (1) motor neuron (2) interneuron (3) effector (4) sensory neuron (5) sensory receptor

Structurally, the simplest reflex is the

Match the nerve to the correct function. -radial nerve

The cross-sectional view of the spinal cord reveals white matter on the

The spinal cord begins at the

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

What does "B" represent?

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

Stretch reflexes

Initiating the withdrawal reflex in both legs at the same time would cause one to

The sciatic nerve is composed of the

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