Question 1

A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye and the corner of his mouth droops. Which cranial nerve has been damaged?

Accepted Answer

A)   facial
B)   hypoglossal
C)   glossopharyngeal
D)   accessory

Question 2

An adult patient shows Babinski's sign during a test of plantar reflex. How is Babinski's sign different than the normal response and what does the altered response indicate?

Accepted Answer

The plantar reflex tests the integrity o...

Question 3

Problems in balance may follow trauma to which nerve?

Accepted Answer

A)   abducens
B)   trigeminal
C)   accessory
D)   vestibulocochlear

Question 4

Nerves that carry impulses toward the CNS only are___________ .

Accepted Answer

A)   motor nerves
B)   mixed nerves
C)   efferent nerves
D)   afferent nerves

Question 5

A fracture of the ethmoid bone could result in damage to which cranial nerve?

Accepted Answer

A)   accessory
B)   vagus
C)   olfactory
D)   glossopharyngeal

Question 6

Describe the symptoms that may occur from lesions of the olfactory nerve, cranial nerve I.

Accepted Answer

The answer of Describe the symptoms that may occur from...

Question 7

A person has gone for an appointment to receive a deep-tissue therapeutic massage. Which of the following receptors would be stimulated by the massage?

Accepted Answer

A)   lamellae corpuscle
B)   tendon organ
C)   free nerve ending
D)   bulbous corpuscle

Question 8

How is a receptor potential similar to an excitatory postsynaptic potential (EPSP) generated at a synapse?

Accepted Answer

A receptor potential acts essentially th...

Question 9

The flexor muscles in the anterior arm (biceps brachii and brachialis)  are innervated by what nerve?

Accepted Answer

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

Question 10

Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.

Accepted Answer

A) True 
 B)False  True

Question 11

The cranial nerve that emerges from the pons and serves the motor and proprioceptive functions of the eyeball is the___________ .

Accepted Answer

A)   vagus
B)   abducens
C)   hypoglossal
D)   glossopharyngeal

Question 12

Complicated interlacing of the ventral rami form networks called nerve plexus. The crisscrossing of the nerve fibers from the various spinal nerves is advantageous because ____________ .

Accepted Answer

A)   having several nerve fibers unite enhances sensory function
B)   injury to any single spinal nerve will be less damaging as there is less chance of total loss of innervation to any particular organ
C)   viruses that infect us by moving through PNS nerves are prevented entry to the CNS
D)   having several nerve fibers unite enhances motor function

Question 13

David, an aspiring baseball player, was struck on the left side of his face with a fastball pitch. He was not wearing a safety helmet. His zygomatic arch was crushed, as well as parts of the temporal bone. Following the accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. What nerve damage did he sustain?

Accepted Answer

He suffered facial nerve damage on his l...

Question 14

A reflex that causes muscle relaxation and lengthening in response to muscle tension is called a ___________.

Accepted Answer

A)   tendon reflex
B)   flexor reflex
C)   plantar reflex
D)   crossed-extensor reflex

Question 15

In a crossed-extensor reflex, if the right arm was grabbed it would flex and the left arm would___________ .

Accepted Answer

A)   abduct
B)   extend
C)   adduct
D)   also flex

Question 16

Injury to cervical vertebrae C3-C4 is particularly problematic because ___________.

Accepted Answer

A)   several ganglia are near this region that serve the heart
B)   part of the brain stem is located here
C)   the greater auricular nerve that serve the parotid gland receive there fibers from here
D)   the phrenic nerve that serves the diaphragm receives its fibers from here

Question 17

Which receptors respond to stimuli within the body?

Accepted Answer

A)   photoreceptors
B)   interoceptors
C)   exteroceptors
D)   proprioceptors

Question 18

Which of the following is the correct simple spinal reflex arc?

Accepted Answer

A)   effector, afferent neuron, integration center, efferent neuron, receptor
B)   receptor, afferent neuron, integration center, efferent neuron, effector
C)   receptor, efferent neuron, integration center, afferent neuron, effector
D)   effector, efferent neuron, integration center, afferent neuron, receptor

Question 19

Inborn or intrinsic reflexes are___________ .

Accepted Answer

A)   involuntary, yet may be modified by learned behavior
B)   autonomic only
C)   always mediated by the brain
D)   rapid, predictable, and can be learned responses A

Question 20

Name three unencapsulated sensory receptors and tell what they are used for.

Accepted Answer

1. Free nerve endings are found throughout the body. They are used by most body tissues to determine stretching, joint positioning, etc. In the epidermis they become pain receptors, heat and cold receptors, and possibly very light pressure receptors. 2. Modified free nerve endings called tactile disks are used as light touch receptors. 3. Hair follicle receptors are mechanical receptors that become very fine touch receptors.

Exam 13: The Peripheral Nervous System and Reflex Activity

A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye and the corner of his mouth droops. Which cranial nerve has been damaged?

Correct Answer
verified

An adult patient shows Babinski's sign during a test of plantar reflex. How is Babinski's sign different than the normal response and what does the altered response indicate?

Correct Answer
verified
The plantar reflex tests the integrity o...
View Answer

Problems in balance may follow trauma to which nerve?

Correct Answer
verified

Nerves that carry impulses toward the CNS only are___________ .

Correct Answer
verified

A fracture of the ethmoid bone could result in damage to which cranial nerve?

Correct Answer
verified

Describe the symptoms that may occur from lesions of the olfactory nerve, cranial nerve I.

Correct Answer
verified

A person has gone for an appointment to receive a deep-tissue therapeutic massage. Which of the following receptors would be stimulated by the massage?

Correct Answer
verified

How is a receptor potential similar to an excitatory postsynaptic potential (EPSP) generated at a synapse?

Correct Answer
verified
A receptor potential acts essentially th...
View Answer

The flexor muscles in the anterior arm (biceps brachii and brachialis) are innervated by what nerve?

Correct Answer
verified

Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.

Correct Answer
verified
True

The cranial nerve that emerges from the pons and serves the motor and proprioceptive functions of the eyeball is the___________ .

Correct Answer
verified

Complicated interlacing of the ventral rami form networks called nerve plexus. The crisscrossing of the nerve fibers from the various spinal nerves is advantageous because ____________ .

Correct Answer
verified

Correct Answer
verified
He suffered facial nerve damage on his l...
View Answer

A reflex that causes muscle relaxation and lengthening in response to muscle tension is called a ___________.

Correct Answer
verified

In a crossed-extensor reflex, if the right arm was grabbed it would flex and the left arm would___________ .

Correct Answer
verified

Injury to cervical vertebrae C3-C4 is particularly problematic because ___________.

Correct Answer
verified

Which receptors respond to stimuli within the body?

Correct Answer
verified

Which of the following is the correct simple spinal reflex arc?

Correct Answer
verified

Inborn or intrinsic reflexes are___________ .

Correct Answer
verified
A

Name three unencapsulated sensory receptors and tell what they are used for.

Exam 13: The Peripheral Nervous System and Reflex Activity

A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye and the corner of his mouth droops. Which cranial nerve has been damaged?

Correct AnswerverifiedShow Answer

An adult patient shows Babinski's sign during a test of plantar reflex. How is Babinski's sign different than the normal response and what does the altered response indicate?

Correct AnswerverifiedThe plantar reflex tests the integrity o...View AnswerShow Answer

Problems in balance may follow trauma to which nerve?

Correct AnswerverifiedShow Answer

Nerves that carry impulses toward the CNS only are___________ .

Correct AnswerverifiedShow Answer

A fracture of the ethmoid bone could result in damage to which cranial nerve?

Correct AnswerverifiedShow Answer

Describe the symptoms that may occur from lesions of the olfactory nerve, cranial nerve I.

Correct AnswerverifiedShow Answer

A person has gone for an appointment to receive a deep-tissue therapeutic massage. Which of the following receptors would be stimulated by the massage?

Correct AnswerverifiedShow Answer

How is a receptor potential similar to an excitatory postsynaptic potential (EPSP) generated at a synapse?

Correct AnswerverifiedA receptor potential acts essentially th...View AnswerShow Answer

The flexor muscles in the anterior arm (biceps brachii and brachialis) are innervated by what nerve?

Correct AnswerverifiedShow Answer

Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.

Correct AnswerverifiedTrue

The cranial nerve that emerges from the pons and serves the motor and proprioceptive functions of the eyeball is the___________ .

Correct AnswerverifiedShow Answer

Complicated interlacing of the ventral rami form networks called nerve plexus. The crisscrossing of the nerve fibers from the various spinal nerves is advantageous because ____________ .

Correct AnswerverifiedShow Answer

Correct AnswerverifiedHe suffered facial nerve damage on his l...View AnswerShow Answer

A reflex that causes muscle relaxation and lengthening in response to muscle tension is called a ___________.

Correct AnswerverifiedShow Answer

In a crossed-extensor reflex, if the right arm was grabbed it would flex and the left arm would___________ .

Correct AnswerverifiedShow Answer

Injury to cervical vertebrae C3-C4 is particularly problematic because ___________.

Correct AnswerverifiedShow Answer

Which receptors respond to stimuli within the body?

Correct AnswerverifiedShow Answer

Which of the following is the correct simple spinal reflex arc?

Correct AnswerverifiedShow Answer

Inborn or intrinsic reflexes are___________ .

Correct AnswerverifiedA

Name three unencapsulated sensory receptors and tell what they are used for.

Correct Answer
verified

Correct Answer
verified
The plantar reflex tests the integrity o...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A receptor potential acts essentially th...
View Answer

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
He suffered facial nerve damage on his l...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A