Question 1

Cranial nerves and spinal nerves are the two types of nerves found in the peripheral nervous system (PNS).

Accepted Answer

A) True 
 B)False

Question 2

Olfactory receptors depolarize in response to an odorant, turning a stimulus into an electrical signal. This conversion is known as:

Accepted Answer

A)   propagation.
B)   adaptation.
C)   repolarization.
D)   sensory transduction.E) A) and B)
F) A) and C)

Question 3

An inability to swallow indicates a problem with the:

Accepted Answer

A)   accessory nerve (XI)  or hypoglossal nerve (XII) .
B)   trigeminal nerve (V)  or glossopharyngeal nerve (IX) .
C)   trochlear nerve (IV)  or abducens nerve (VI) .
D)   olfactory nerve (I) .E) B) and C)
F) All of the above

Question 4

Determine the polysynaptic reflex from this list of examples.

Accepted Answer

A)   patellar (knee -jerk)  reflex
B)   simple stretch reflex
C)   jaw -jerk reflex
D)   flexion (withdrawal)  reflexE) B) and D)
F) None of the above

Question 5

Motor neurons pools consist of:

Accepted Answer

A)   lower motor neurons.
B)   secondary afferent neurons.
C)   primary afferent neurons.
D)   upper motor neurons.E) B) and C)
F) A) and B)

Question 6

What cranial nerves are involved in the sensory and the motor roles for the corneal blink reflex?

Accepted Answer

A)   trigeminal nerve (V)  as sensory; facial nerve (VII)  as motor
B)   glossopharyngeal nerve (IX)  as sensory, oculomotor nerve (III)  as motor
C)   trochlear nerve (IV)  as sensory, abducens nerve (VI)  as motor
D)   optic nerve (II)  as sensory, oculomotor nerve (III)  as motorE) None of the above
F) A) and D)

Question 7

Which of the following does NOT characterize a reflex?

Accepted Answer

A)   Neural integration of a reflex usually occurs in the PNS.
B)   The motor response to a stimulus is rapid.
C)   A reflex is an automatic response to a stimulus.
D)   Reflexes require a stimulus to initiate a motor response.E) A) and B)
F) A) and C)

Question 8

The lumbar nerve plexuses arise from the anterior rami of L1 - L4 and innervate structures of the pelvis and lower limb.

Accepted Answer

A) True 
 B)False

Question 9

Upper motor neurons directly contact and stimulate skeletal muscle fibers to contract.

Accepted Answer

A) True 
 B)False  False

Question 10

Which of the following houses motor neurons?

Accepted Answer

A)   anterior root of spinal nerve
B)   central canal of the spinal cord
C)   posterior root ganglion
D)   posterior root of spinal nerveE) B) and D)
F) B) and C)

Question 11

Motor control is initiated by lower motor neurons and transmitted to upper motor neurons by interneurons situated within the CNS.

Accepted Answer

A) True 
 B)False

Question 12

Outline the steps to a simple stretch reflex.

Accepted Answer

The steps of a simple stretch reflex are...

Question 13

Ms. Carroll went to her doctor's office with pain in her right shoulder blade and learned she was having a gallbladder attack. You're not surprised to hear about the unusual location of her pain since it is known as:

Accepted Answer

A)   the receptive field.
B)   referred pain.
C)   phantom limb pain.
D)   chronic pain.E) A) and C)
F) C) and D)

Question 14

The sympathetic nervous system and parasympathetic nervous system are divisions of the:

Accepted Answer

A)   somatic motor division.
B)   visceral sensory division.
C)   visceral motor division (autonomic nervous system) .
D)   somatic sensory division.E) All of the above
F) A) and C) C

Question 15

Which plexus provides motor and sensory innervation to the upper limb?

Accepted Answer

A)   cranial plexus
B)   sacral plexus
C)   brachial plexus
D)   lumbar plexusE) A) and B)
F) A) and C) C

Question 16

Receptive field maps show the regions of skin and the spinal nerve that supplies somatic sensation to them.

Accepted Answer

A) True 
 B)False

Question 17

Match the following using the image of the plexuses.
 
-Brachial plexus

Accepted Answer

The answer of Match the following using the image of...

Question 18

What part of the nervous system integrates and interprets information from PNS sensory neurons?

Accepted Answer

A)   sensory (afferent)  division
B)   central nervous system (CNS) 
C)   somatic nervous system (SNS) 
D)   visceral motor division, or autonomic nervous system (ANS) E) B) and D)
F) B) and C)

Question 19

A patient sustained an injury to the lower motor neurons when a board fell on his back at a construction site. The upper motor neurons are intact and undamaged. Determine the effect, if any, on motor control.

Accepted Answer

The upper motor neurons stimulate the lo...

Question 20

The hypoglossal nerve (XII) and glossopharyngeal nerve (IX) are both involved in taste sensation.

Accepted Answer

A) True 
 B)False

Exam 13: The Peripheral Nervous System

Cranial nerves and spinal nerves are the two types of nerves found in the peripheral nervous system (PNS).

Correct AnswerverifiedShow Answer

Olfactory receptors depolarize in response to an odorant, turning a stimulus into an electrical signal. This conversion is known as:

Correct AnswerverifiedShow Answer

An inability to swallow indicates a problem with the:

Correct AnswerverifiedShow Answer

Determine the polysynaptic reflex from this list of examples.

Correct AnswerverifiedShow Answer

Motor neurons pools consist of:

Correct AnswerverifiedShow Answer

What cranial nerves are involved in the sensory and the motor roles for the corneal blink reflex?

Correct AnswerverifiedShow Answer

Which of the following does NOT characterize a reflex?

Correct AnswerverifiedShow Answer

The lumbar nerve plexuses arise from the anterior rami of L1 - L4 and innervate structures of the pelvis and lower limb.

Correct AnswerverifiedShow Answer

Upper motor neurons directly contact and stimulate skeletal muscle fibers to contract.

Correct AnswerverifiedFalse

Which of the following houses motor neurons?

Correct AnswerverifiedShow Answer

Motor control is initiated by lower motor neurons and transmitted to upper motor neurons by interneurons situated within the CNS.

Correct AnswerverifiedShow Answer

Outline the steps to a simple stretch reflex.

Correct AnswerverifiedThe steps of a simple stretch reflex are...View AnswerShow Answer

Ms. Carroll went to her doctor's office with pain in her right shoulder blade and learned she was having a gallbladder attack. You're not surprised to hear about the unusual location of her pain since it is known as:

Correct AnswerverifiedShow Answer

The sympathetic nervous system and parasympathetic nervous system are divisions of the:

Correct AnswerverifiedC

Which plexus provides motor and sensory innervation to the upper limb?

Correct AnswerverifiedC

Receptive field maps show the regions of skin and the spinal nerve that supplies somatic sensation to them.

Correct AnswerverifiedShow Answer

Match the following using the image of the plexuses. -Brachial plexus

Correct AnswerverifiedShow Answer

What part of the nervous system integrates and interprets information from PNS sensory neurons?

Correct AnswerverifiedShow Answer

A patient sustained an injury to the lower motor neurons when a board fell on his back at a construction site. The upper motor neurons are intact and undamaged. Determine the effect, if any, on motor control.

Correct AnswerverifiedThe upper motor neurons stimulate the lo...View AnswerShow Answer

The hypoglossal nerve (XII) and glossopharyngeal nerve (IX) are both involved in taste sensation.

Correct AnswerverifiedShow Answer

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The lumbar nerve plexuses arise from the anterior rami of L₁^-L₄and innervate structures of the pelvis and lower limb.

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False

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The steps of a simple stretch reflex are...
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C

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C

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The upper motor neurons stimulate the lo...
View Answer

Correct Answer
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