Question 1

What do local anesthetic drugs inhibit in order to prevent nerve cell stimulation?

Accepted Answer

A)  Sodium influx 
B)  Potassium influx 
C)  Chloride excretion 
D)  All options listed 
A)  Sodium influx 
B)  Potassium influx 
C)  Chloride excretion 
D)  All options listed A

Question 2

What is the layer of connective tissue that surrounds each axon within a nerve called?

Accepted Answer

A)  Epineurium 
B)  Endoneurium 
C)  Perineurium 
D)  Fascicle 
A)  Epineurium 
B)  Endoneurium 
C)  Perineurium 
D)  Fascicle B

Question 3

The smaller-diameter nerve fibers associated with supraperiosteal injections are more sensitive to local anesthetics.The larger-diameter nerve fibers of the IA and PSA require a larger volume of local anesthetic for successful nerve blockage.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true. 
A)  Both statements are true. 
B)  Both statements are false 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true. A

Question 4

What are the nerves that conduct signals away from the brain or spinal cord called?

Accepted Answer

A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves 
A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves

Question 5

What is another name for axons?

Accepted Answer

A)  Core bundles 
B)  Mantle bundles 
C)  Nerve fibers 
D)  All options listed 
A)  Core bundles 
B)  Mantle bundles 
C)  Nerve fibers 
D)  All options listed

Question 6

The A alpha nerve fiber type is the smallest and the most numerous nerve fiber.The A delta nerve fiber type is primarily responsible for dull,aching pain.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true. 
A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true.

Question 7

What is the layer of connective tissue that surrounds the entire nerve called?

Accepted Answer

A)  Epineurium 
B)  Endoneurium 
C)  Perineurium 
D)  Fascicle 
A)  Epineurium 
B)  Endoneurium 
C)  Perineurium 
D)  Fascicle

Question 8

The relationship between relative amounts of ions inside and outside the nerve membrane is known as which of the following?

Accepted Answer

A)  Relative refractory period 
B)  Concentration gradient 
C)  Action potential 
D)  Axolemma 
A)  Relative refractory period 
B)  Concentration gradient 
C)  Action potential 
D)  Axolemma

Question 9

Which nerve fiber type is responsible for pain related to temperature?

Accepted Answer

A)  A alpha 
B)  A delta 
C)  B 
D)  C 
A)  A alpha 
B)  A delta 
C)  B 
D)  C

Question 10

The cell body of which neuron participates in impulse conduction and therefore is located at the terminal arborization?

Accepted Answer

A)  Sensory neurons 
B)  Motor neurons 
C)  Somatic neurons 
D)  All options listed 
A)  Sensory neurons 
B)  Motor neurons 
C)  Somatic neurons 
D)  All options listed

Question 11

The function of the cell body is to transmit impulses.The cell body is responsible for protein synthesis and provides metabolic support for the neuron.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true. 
A)  Both statements are true. 
B)  Both statements are false 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true.

Question 12

What are the endogenous chemicals that transmit signals from a neuron to a target cell across a synapse called?

Accepted Answer

A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves 
A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves

Question 13

Local anesthetic agents used in dentistry:

Accepted Answer

A)  Cause loss of nociception 
B)  Prevent generation of a nerve impulse 
C)  Prevent conduction of a nerve impulse 
D)  All options listed 
A)  Cause loss of nociception 
B)  Prevent generation of a nerve impulse 
C)  Prevent conduction of a nerve impulse 
D)  All options listed

Question 14

The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called what?

Accepted Answer

A)  All-or-none principle 
B)  Polarization 
C)  Depolarization 
D)  Refractory period 
A)  All-or-none principle 
B)  Polarization 
C)  Depolarization 
D)  Refractory period

Question 15

What are the nerves that conduct signals from sensory neurons to the spinal cord or brain called?

Accepted Answer

A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves 
A)  Neurotransmitters 
B)  Electrical synapses 
C)  Afferent nerves 
D)  Efferent nerves

Question 16

As the action potential moves down the line,its strength decreases as it moves from one neuron to the next.The action potential in myelinated axons does not propagate as waves as in unmyelinated axons.

Accepted Answer

A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true. 
A)  Both statements are true. 
B)  Both statements are false. 
C)  The first statement is true;the second statement is false. 
D)  The first statement is false;the second statement is true.

Question 17

The axon is:

Accepted Answer

A)  Made up of cytoplasm 
B)  Surrounded by a multiple lipid membrane 
C)  All options listed 
D)  None of the options listed 
A)  Made up of cytoplasm 
B)  Surrounded by a multiple lipid membrane 
C)  All options listed 
D)  None of the options listed

Question 18

Which of the following is true regarding the nodes of Ranvier?

Accepted Answer

A)  Found along myelinated nerve fibers between adjacent Schwann cells 
B)  Occur at unevenly spaced intervals 
C)  All options listed 
D)  None of the options listed 
A)  Found along myelinated nerve fibers between adjacent Schwann cells 
B)  Occur at unevenly spaced intervals 
C)  All options listed 
D)  None of the options listed

Question 19

Which description best describes the mechanism by which local anesthetic drugs work?

Accepted Answer

A)  Anesthetic drugs bind to the sodium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
B)  Anesthetic drugs bind to the potassium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
C)  Anesthetic drugs bind to the sodium channels,the influx of potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
D)  Anesthetic drugs bind to the sodium channels,the influx of sodium and potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
A)  Anesthetic drugs bind to the sodium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
B)  Anesthetic drugs bind to the potassium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
C)  Anesthetic drugs bind to the sodium channels,the influx of potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited. 
D)  Anesthetic drugs bind to the sodium channels,the influx of sodium and potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.

Question 20

At the synaptic knobs of neuron cells,what type of action is required to have the electrical impulse cross the synapse of one cell to another cell?

Accepted Answer

A)  The action of electrical synapses 
B)  The action of chemical synapses 
C)  The action of either electrical or chemical synapses 
D)  Repolarization 
A)  The action of electrical synapses 
B)  The action of chemical synapses 
C)  The action of either electrical or chemical synapses 
D)  Repolarization

What do local anesthetic drugs inhibit in order to prevent nerve cell stimulation?

What is the layer of connective tissue that surrounds each axon within a nerve called?

The smaller-diameter nerve fibers associated with supraperiosteal injections are more sensitive to local anesthetics.The larger-diameter nerve fibers of the IA and PSA require a larger volume of local anesthetic for successful nerve blockage.

What are the nerves that conduct signals away from the brain or spinal cord called?

What is another name for axons?

The A alpha nerve fiber type is the smallest and the most numerous nerve fiber.The A delta nerve fiber type is primarily responsible for dull,aching pain.

What is the layer of connective tissue that surrounds the entire nerve called?

The relationship between relative amounts of ions inside and outside the nerve membrane is known as which of the following?

Which nerve fiber type is responsible for pain related to temperature?

The cell body of which neuron participates in impulse conduction and therefore is located at the terminal arborization?

The function of the cell body is to transmit impulses.The cell body is responsible for protein synthesis and provides metabolic support for the neuron.

What are the endogenous chemicals that transmit signals from a neuron to a target cell across a synapse called?

Local anesthetic agents used in dentistry:

The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called what?

What are the nerves that conduct signals from sensory neurons to the spinal cord or brain called?

As the action potential moves down the line,its strength decreases as it moves from one neuron to the next.The action potential in myelinated axons does not propagate as waves as in unmyelinated axons.

The axon is:

Which of the following is true regarding the nodes of Ranvier?

Which description best describes the mechanism by which local anesthetic drugs work?

At the synaptic knobs of neuron cells,what type of action is required to have the electrical impulse cross the synapse of one cell to another cell?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Topical Anesthetic Agents

Preanesthetic Assessment

Determining Drug Doses

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Anesthesia

Mandibular Anesthesia

Local Anesthesia for the Child and Adolescent

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters

Exam 2: Neurophysiology

What do local anesthetic drugs inhibit in order to prevent nerve cell stimulation?

What is the layer of connective tissue that surrounds each axon within a nerve called?

The smaller-diameter nerve fibers associated with supraperiosteal injections are more sensitive to local anesthetics.The larger-diameter nerve fibers of the IA and PSA require a larger volume of local anesthetic for successful nerve blockage.

What are the nerves that conduct signals away from the brain or spinal cord called?

What is another name for axons?

The A alpha nerve fiber type is the smallest and the most numerous nerve fiber.The A delta nerve fiber type is primarily responsible for dull,aching pain.

What is the layer of connective tissue that surrounds the entire nerve called?

The relationship between relative amounts of ions inside and outside the nerve membrane is known as which of the following?

Which nerve fiber type is responsible for pain related to temperature?

The cell body of which neuron participates in impulse conduction and therefore is located at the terminal arborization?

The function of the cell body is to transmit impulses.The cell body is responsible for protein synthesis and provides metabolic support for the neuron.

What are the endogenous chemicals that transmit signals from a neuron to a target cell across a synapse called?

Local anesthetic agents used in dentistry:

The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called what?

What are the nerves that conduct signals from sensory neurons to the spinal cord or brain called?

As the action potential moves down the line,its strength decreases as it moves from one neuron to the next.The action potential in myelinated axons does not propagate as waves as in unmyelinated axons.

The axon is:

Which of the following is true regarding the nodes of Ranvier?

Which description best describes the mechanism by which local anesthetic drugs work?

At the synaptic knobs of neuron cells,what type of action is required to have the electrical impulse cross the synapse of one cell to another cell?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Topical Anesthetic Agents

Preanesthetic Assessment

Determining Drug Doses

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Anesthesia

Mandibular Anesthesia

Local Anesthesia for the Child and Adolescent

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters