Question 1

Which statement best describes rapid depolarization?

Accepted Answer

A)   The membrane rapidly depolarizes at the site of stimulation causing a firing threshold that is followed by displacement of the calcium ions.
B)   The membrane rapidly depolarizes once the firing threshold has been achieved allowing a flood of sodium ions into the axoplasm.
C)   The membrane rapidly depolarizes along the entire nerve until the strength of the stimulus increases enough to cause an impulse.
D)   The membrane rapidly depolarizes following the refractory resting state.E) A) and B)
F) B) and D)

Question 2

Match the following :
-Node of Ranvier

Accepted Answer

A)   Water loving
B)   Passage through nerve membrane
C)   Nerve bundle of nerve fibers
D)   Nerve membrane
E)   Covering on nerve membraneF)  Forms myelin layerG)  Ionic activity on nerve membraneH)  Area of synapsesI)  Little or no stimulation on nerveJ)  Gap in sheathK) B) and D)
L) B) and E)

Question 3

The inability of a nerve membrane to be restimulated following impulse generation and conduction is known as a ________.

Accepted Answer

The answer of The inability of a nerve membrane to...

Question 4

The two most significant ________ of local anesthetic solutions are the perilemma and the perineurium.

Accepted Answer

barriers t...

Question 5

Identify the structures indicated on the figure below:
 
-Identify C.

Accepted Answer

The answer of Identify the structures indicated on the figure...

Question 6

The four structural parts of the neuron are the ________, ________, ________, and ________.

Accepted Answer

dendritic zone, axon...

Question 7

Nerve impulses are initiated in the:

Accepted Answer

A)   Dendritic zone
B)   Axon.
C)   Cell body.
D)   Terminal arborationE) A) and B)
F) A) and C)

Question 8

Which statement correctly describes the cell bodies of sensory and motor neurons?

Accepted Answer

A)   Motor neuron cell bodies are located away from the axon.
B)   Sensory neuron cell bodies participate in impulse transmission.
C)   Sensory neuron cell bodies do not participate in impulse transmission.
D)   Motor neuron cell bodies do not participate in the impulse transmission.E) A) and D)
F) None of the above C

Question 9

Identify the structures indicated on the figure below:
 
-Identify E.

Accepted Answer

terminal a...

Question 10

An injection has been completed on the right side of the mandible. The patient, Ralph, tells the clinician that his back teeth are numb; however, his lower lip and chin are not very numb.
-Provide two reasons Ralph does not feel as numb in the anterior area.

Accepted Answer

The anesthetic solution reaches the core bundles only after the solution has penetrated through the mantle bundles. It takes longer for the anesthetic solution to reach the core bundles.
There is a diluting effect on the solution due to the binding of the drug molecules to receptor sites in the mantle bundles. Once at the core, there are fewer anesthetic molecules remaining to bind to the receptor sites in the core.

Question 11

All cell bodies of sensory nerves that innervate oral tissues are located in the trigeminal ganglia and participate in impulse transmission.

Accepted Answer

A) True 
 B)False

Question 12

Match the following :
-Neurolemma

Accepted Answer

A)   Water loving
B)   Passage through nerve membrane
C)   Nerve bundle of nerve fibers
D)   Nerve membrane
E)   Covering on nerve membraneF)  Forms myelin layerG)  Ionic activity on nerve membraneH)  Area of synapsesI)  Little or no stimulation on nerveJ)  Gap in sheathK) C) and H)
L) A) and H)

Question 13

Which of the following sequences best describes the events in a successful impulse generation?

Accepted Answer

A)   Stimulation, firing threshold, rapid depolarization, slow repolarization, resting state
B)   Stimulation, slow depolarization, firing threshold, rapid depolarization, recovery
C)   Resting state, stimulation, slow depolarization, rapid depolarization, firing threshold
D)   Resting state, stimulation, slow depolarization, rapid depolarization, slow depolarizationE) A) and B)
F) B) and C) B

Question 14

Which statement does not describe the typical onset of anesthesia?

Accepted Answer

A)   Anesthesia will affect smaller nerves before larger nerves.
B)   Anesthesia will affect sensory nerves before motor nerves.
C)   Mantle bundles will be anesthetized before core bundles.
D)   Onset is faster on incisors, soft tissues of chin, and labial tissues.E) B) and C)
F) None of the above

Question 15

Schwann cells release neurotransmitters when stimulated by impulses.

Accepted Answer

A) True 
 B)False

Question 16

Explain the structure and function of Schwann cells and nodes of Ranvier.

Accepted Answer

Schwann cells are specialized connective...

Question 17

Myelinated nerves have minute gaps consisting of unprotected nerve membranes between adjacent Schwann cells called ________.

Accepted Answer

The answer of Myelinated nerves have minute gaps consisting of...

Question 18

What are three divisions of the dental plexus?
A. Interdental, interradicular, and periodontal
B. Inner dental, interradicular, and dental
C. Inner dental, interradicular, and periodontal
D. Interdental, interradicular, and dental

Accepted Answer

The answer of What are three divisions of the dental...

Question 19

Motor nerves carry impulses away from the CNS to ________ and ________.

Accepted Answer

effector c...

Question 20

Which statement correctly describes sensory and motor neurons?

Accepted Answer

A)   Sensory neurons are efferent and conduct impulse away from the CNS.
B)   Sensory neurons are afferent and conduct impulses toward the CNS.
C)   Motor neurons participate in impulse conduction toward the CNS.
D)   Motor neurons and sensory neurons have cell bodies that participate in the conduction of nerve impulse transmission.E) B) and C)
F) All of the above

Exam 3: The Neuroanatomy and Neurophysiology of Pain Control

Which statement best describes rapid depolarization?

Correct Answer
verified

Match the following : -Node of Ranvier

Correct Answer
verified

The inability of a nerve membrane to be restimulated following impulse generation and conduction is known as a ________.

Correct Answer
verified

The two most significant ________ of local anesthetic solutions are the perilemma and the perineurium.

Correct Answer
verified
barriers t...
View Answer

Identify the structures indicated on the figure below: -Identify C.

Correct Answer
verified

The four structural parts of the neuron are the , , , and .

Correct Answer
verified
dendritic zone, axon...
View Answer

Nerve impulses are initiated in the:

Correct Answer
verified

Which statement correctly describes the cell bodies of sensory and motor neurons?

Correct Answer
verified
C

Identify the structures indicated on the figure below: -Identify E.

Correct Answer
verified
terminal a...
View Answer

An injection has been completed on the right side of the mandible. The patient, Ralph, tells the clinician that his back teeth are numb; however, his lower lip and chin are not very numb. -Provide two reasons Ralph does not feel as numb in the anterior area.

All cell bodies of sensory nerves that innervate oral tissues are located in the trigeminal ganglia and participate in impulse transmission.

Correct Answer
verified

Match the following : -Neurolemma

Correct Answer
verified

Which of the following sequences best describes the events in a successful impulse generation?

Correct Answer
verified
B

Which statement does not describe the typical onset of anesthesia?

Correct Answer
verified

Schwann cells release neurotransmitters when stimulated by impulses.

Correct Answer
verified

Explain the structure and function of Schwann cells and nodes of Ranvier.

Correct Answer
verified
Schwann cells are specialized connective...
View Answer

Myelinated nerves have minute gaps consisting of unprotected nerve membranes between adjacent Schwann cells called ________.

Correct Answer
verified

What are three divisions of the dental plexus? A. Interdental, interradicular, and periodontal B. Inner dental, interradicular, and dental C. Inner dental, interradicular, and periodontal D. Interdental, interradicular, and dental

Correct Answer
verified

Motor nerves carry impulses away from the CNS to and .

Correct Answer
verified
effector c...
View Answer

Which statement correctly describes sensory and motor neurons?

Correct Answer
verified

Exam 3: The Neuroanatomy and Neurophysiology of Pain Control

Which statement best describes rapid depolarization?

Correct AnswerverifiedShow Answer

Match the following : -Node of Ranvier

Correct AnswerverifiedShow Answer

The inability of a nerve membrane to be restimulated following impulse generation and conduction is known as a ________.

Correct AnswerverifiedShow Answer

The two most significant ________ of local anesthetic solutions are the perilemma and the perineurium.

Correct Answerverifiedbarriers t...View AnswerShow Answer

Identify the structures indicated on the figure below: -Identify C.

Correct AnswerverifiedShow Answer

The four structural parts of the neuron are the ________, ________, ________, and ________.

Correct Answerverifieddendritic zone, axon...View AnswerShow Answer

Nerve impulses are initiated in the:

Correct AnswerverifiedShow Answer

Which statement correctly describes the cell bodies of sensory and motor neurons?

Correct AnswerverifiedC

Identify the structures indicated on the figure below: -Identify E.

Correct Answerverifiedterminal a...View AnswerShow Answer

An injection has been completed on the right side of the mandible. The patient, Ralph, tells the clinician that his back teeth are numb; however, his lower lip and chin are not very numb. -Provide two reasons Ralph does not feel as numb in the anterior area.

All cell bodies of sensory nerves that innervate oral tissues are located in the trigeminal ganglia and participate in impulse transmission.

Correct AnswerverifiedShow Answer

Match the following : -Neurolemma

Correct AnswerverifiedShow Answer

Which of the following sequences best describes the events in a successful impulse generation?

Correct AnswerverifiedB

Which statement does not describe the typical onset of anesthesia?

Correct AnswerverifiedShow Answer

Schwann cells release neurotransmitters when stimulated by impulses.

Correct AnswerverifiedShow Answer

Explain the structure and function of Schwann cells and nodes of Ranvier.

Correct AnswerverifiedSchwann cells are specialized connective...View AnswerShow Answer

Myelinated nerves have minute gaps consisting of unprotected nerve membranes between adjacent Schwann cells called ________.

Correct AnswerverifiedShow Answer

What are three divisions of the dental plexus? A. Interdental, interradicular, and periodontal B. Inner dental, interradicular, and dental C. Inner dental, interradicular, and periodontal D. Interdental, interradicular, and dental

Correct AnswerverifiedShow Answer

Motor nerves carry impulses away from the CNS to ________ and ________.

Correct Answerverifiedeffector c...View AnswerShow Answer

Which statement correctly describes sensory and motor neurons?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified
barriers t...
View Answer

Correct Answer
verified

The four structural parts of the neuron are the , , , and .

Correct Answer
verified
dendritic zone, axon...
View Answer

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
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terminal a...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
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B

Correct Answer
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Correct Answer
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Correct Answer
verified
Schwann cells are specialized connective...
View Answer

Correct Answer
verified

Correct Answer
verified

Motor nerves carry impulses away from the CNS to and .

Correct Answer
verified
effector c...
View Answer

Correct Answer
verified