Question 1

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.

Question 2

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

Accepted Answer

A) True 
 B)False  True

Question 3

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)  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 4

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

Question 5

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

Question 6

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 7

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 8

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 
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 9

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 10

Which receptors respond to stimuli within the body?

Accepted Answer

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

Question 11

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

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 
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

Nerves that carry impulses toward the CNS only are___________ .

Accepted Answer

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

Question 14

Problems in balance may follow trauma to which nerve?

Accepted Answer

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

Question 15

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 
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 16

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

Accepted Answer

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

Question 17

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

Question 18

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 19

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

Question 20

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

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

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

Inborn or intrinsic reflexes are___________ .

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

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

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

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

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

Which receptors respond to stimuli within the body?

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?

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 ____________ .

Nerves that carry impulses toward the CNS only are___________ .

Problems in balance may follow trauma to which nerve?

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

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

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

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?

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

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?

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

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Exam 13: The Peripheral Nervous System and Reflex Activity

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

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

Inborn or intrinsic reflexes are___________ .

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

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

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

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

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

Which receptors respond to stimuli within the body?

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?

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 ____________ .

Nerves that carry impulses toward the CNS only are___________ .

Problems in balance may follow trauma to which nerve?

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

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

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

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?

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

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?

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters