Question 1

Which cranial nerve innervates the tongue muscle?

Accepted Answer

A)  Oculomotor
B)  Olfactory
C)  Vagus
D)  HypoglossalE) C) and D)
F) B) and D)

Question 2

If a patient cannot smile, which cranial nerve is most likely involved?

Accepted Answer

A)  Glossopharyngeal
B)  Vagus
C)  Facial
D)  AbducensE) A) and D)
F) C) and D)

Question 3

Which cranial nerve is classified as a mixed nerve?

Accepted Answer

A)  Facial
B)  Oculomotor
C)  Trochlear
D)  AbducensE) C) and D)
F) A) and B)

Question 4

-Identify the nerve labeled "c."

Accepted Answer

A)  Abducens nerve
B)  Oculomotor nerve
C)  Facial nerve
D)  Trochlear nerveE) All of the above
F) C) and D)

Question 5

Identify the difference between somatic and autonomic motor reflexes.

Accepted Answer

A)  Somatic motor pathways require one motor neuron, and autonomic pathways require two.
B)  Somatic motor pathways innervate skeletal muscle, and autonomic pathways innervate cardiac muscle, smooth muscle or glands.
C)  Somatic motor pathways are voluntary, and autonomic motor pathways are involuntary.
D)  All choices are differences between somatic and autonomic motor pathways.E) C) and D)
F) A) and B)

Question 6

Which nerve is a branch of the sciatic nerve?

Accepted Answer

A)  Common fibular
B)  Inferior gluteal
C)  Ilioinguinal
D)  PudendalE) A) and B)
F) A) and C)

Question 7

-Identify the nerve labeled "c."

Accepted Answer

A)  Trochlear
B)  Facial
C)  Abducens
D)  OculomotorE) None of the above
F) C) and D)

Question 8

-Identify the nerve plexus labeled "c."

Accepted Answer

A)  sacral plexus
B)  lumbar plexus
C)  Brachial plexus
D)  Cervical plexusE) B) and C)
F) None of the above

Question 9

In a motorcycle accident, a man suffers an arm and shoulder injury. Which nerve is most likely damaged if he can extend his elbow but can't flex his wrist?

Accepted Answer

A)  Radial
B)  Musculocutaneous
C)  Axillary
D)  MedianE) B) and D)
F) None of the above

Question 10

During the patellar reflex, what structure acts as the effector?

Accepted Answer

A)  Spinal cord's posterior horn
B)  Rectus femoris muscle
C)  Spinal cord's anterior horn
D)  ProprioceptorE) A) and D)
F) A) and C) B

Question 11

Which nerve transmits motor information to the effector in the light pupillary reflex?

Accepted Answer

A)  Trigeminal
B)  Optic
C)  Abducens
D)  OculomotorE) A) and B)
F) A) and C) D

Question 12

Which is not a component of a typical reflex arc?

Accepted Answer

A)  Motor neuron
B)  Receptor
C)  Effector
D)  Cerebral cortex
E)  Integration centerF) C) and D)
G) A) and B)

Question 13

Which nerve arises from the sacral plexus?

Accepted Answer

A)  Musculocutaneous nerve
B)  Axillary nerve
C)  Sciatic nerve
D)  Femoral nerveE) A) and B)
F) B) and C)

Question 14

Which statement is true?

Accepted Answer

A)  The sympathetic division increases heart contractions but decreases gastrointestinal tract activity.
B)  The sympathetic division increases heart and gastrointestinal tract muscle contractions.
C)  The sympathetic division decreases all visceral organ activity.
D)  The sympathetic division increases all visceral organ activity.E) C) and D)
F) All of the above

Question 15

Which cranial nerve extends into the ventral body cavity and innervates many of the visceral organs?

Accepted Answer

A)  Saphenous
B)  Trigeminal
C)  Accessory
D)  VagusE) All of the above
F) A) and D) D

Question 16

The nerve fibers of which cranial nerve pass through the foramina of the cribriform plate?

Accepted Answer

A)  Glossopharyngeal
B)  Olfactory nerve
C)  Hypoglossal
D)  AbducensE) A) and D)
F) All of the above

Question 17

Which cranial nerve is classified as strictly a sensory nerve?

Accepted Answer

A)  Vagus
B)  Hypoglossal
C)  Olfactory
D)  OculomotorE) None of the above
F) A) and C)

Question 18

What part of the reflex arc receives the stimulus?

Accepted Answer

A)  Receptor
B)  Motor neuron
C)  Effector
D)  Sensory neuron
E)  Integration centerF) None of the above
G) B) and E)

Question 19

What does the sensation of taste require that is not required in the sensations of vision, hearing, and olfaction?

Accepted Answer

A)  Sensory information carried through three cranial nerves.
B)  The chemical stimulus to dissolve.
C)  Mixed sensory and motor function.
D)  Requires the vagus nerve for function.E) B) and D)
F) C) and D)

Question 20

Which cranial nerve innervates an extrinsic eye muscle?

Accepted Answer

A)  Accessory
B)  Trochlear
C)  Glossopharyngeal
D)  OpticE) C) and D)
F) All of the above

Exam 16: The Peripheral Nervous System: Nerves and Autonomic Nervous System

Which cranial nerve innervates the tongue muscle?

Correct AnswerverifiedShow Answer

If a patient cannot smile, which cranial nerve is most likely involved?

Correct AnswerverifiedShow Answer

Which cranial nerve is classified as a mixed nerve?

Correct AnswerverifiedShow Answer

-Identify the nerve labeled "c."

Correct AnswerverifiedShow Answer

Identify the difference between somatic and autonomic motor reflexes.

Correct AnswerverifiedShow Answer

Which nerve is a branch of the sciatic nerve?

Correct AnswerverifiedShow Answer

-Identify the nerve labeled "c."

Correct AnswerverifiedShow Answer

-Identify the nerve plexus labeled "c."

Correct AnswerverifiedShow Answer

In a motorcycle accident, a man suffers an arm and shoulder injury. Which nerve is most likely damaged if he can extend his elbow but can't flex his wrist?

Correct AnswerverifiedShow Answer

During the patellar reflex, what structure acts as the effector?

Correct AnswerverifiedB

Which nerve transmits motor information to the effector in the light pupillary reflex?

Correct AnswerverifiedD

Which is not a component of a typical reflex arc?

Correct AnswerverifiedShow Answer

Which nerve arises from the sacral plexus?

Correct AnswerverifiedShow Answer

Which statement is true?

Correct AnswerverifiedShow Answer

Which cranial nerve extends into the ventral body cavity and innervates many of the visceral organs?

Correct AnswerverifiedD

The nerve fibers of which cranial nerve pass through the foramina of the cribriform plate?

Correct AnswerverifiedShow Answer

Which cranial nerve is classified as strictly a sensory nerve?

Correct AnswerverifiedShow Answer

What part of the reflex arc receives the stimulus?

Correct AnswerverifiedShow Answer

What does the sensation of taste require that is not required in the sensations of vision, hearing, and olfaction?

Correct AnswerverifiedShow Answer

Which cranial nerve innervates an extrinsic eye muscle?

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
B

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified