Question 1

A sudden change in electrical potential of a neuron membrane which travels along the neuron axon is called

Accepted Answer

A) a resting potential 
B) an action potential 
C) hyperpolarization 
D) none of these 
A) a resting potential 
B) an action potential 
C) hyperpolarization 
D) none of these

Question 2

If one measures the voltage potential of a presynaptic neuron and a postsynaptic neuron that form a synapse, the magnitude of the potential measured at the postsynaptic membrane is typically ______________________ the potential measured at the presynaptic membrane when an action potential arrives at the presynaptic neuron's axon terminal.

Accepted Answer

A) larger than 
B) smaller than 
C) equal to 
A) larger than 
B) smaller than 
C) equal to

Question 3

What are two basic functional distinctions between synaptic neurotransmission and nonsynaptic diffusion neurotransmission (volume transmission) in the brain?

Accepted Answer

With synaptic neurotransmission, neurotr

Question 4

An action potential refers to

Accepted Answer

A) an exchange of positive and negative ions across the axon membrane 
B) the release of chemicals into the synapse 
C) the stimulation of dendrites 
D) positive ions flowing out of the neuron 
A) an exchange of positive and negative ions across the axon membrane 
B) the release of chemicals into the synapse 
C) the stimulation of dendrites 
D) positive ions flowing out of the neuron

Question 5

During an action potential, which of the following events occur?

Accepted Answer

A) Na+ (sodium ions) flows into neuron, followed by K+ (potassium ions) flowing out of the neuron 
B) Na+ flows out of neuron, followed by K+ flowing into the neuron 
C) K+ flows into neuron, followed by Na+ flowing out of the neuron 
D) K+ flows out of neuron, followed by Na+ flowing into the neuron 
A) Na+ (sodium ions) flows into neuron, followed by K+ (potassium ions) flowing out of the neuron 
B) Na+ flows out of neuron, followed by K+ flowing into the neuron 
C) K+ flows into neuron, followed by Na+ flowing out of the neuron 
D) K+ flows out of neuron, followed by Na+ flowing into the neuron

Question 6

In the human brain, the transmission of a stimulus along a neuron is electrical and its transmission between neurons is predominantly

Accepted Answer

A) electromagnetic 
B) tactile 
C) chemical 
D) also electrical 
A) electromagnetic 
B) tactile 
C) chemical 
D) also electrical

Question 7

The normal sequence of conduction of information through a single neuron is as follows:

Accepted Answer

A) axon terminal, axon, cell body, dendrite 
B) cell body, axon, dendrite, axon terminal 
C) dendrite, cell body, axon terminal, axon 
D) dendrite, cell body, axon, axon terminal 
A) axon terminal, axon, cell body, dendrite 
B) cell body, axon, dendrite, axon terminal 
C) dendrite, cell body, axon terminal, axon 
D) dendrite, cell body, axon, axon terminal

Question 8

What does depolarization in a neuron refer to?

Accepted Answer

It refers to a shift in a neuron's membr

Question 9

What is a synapse?

Accepted Answer

A) the connection between one node and the next 
B) the connection between the glia and a neuron 
C) the junction between an axon terminal and another neuron 
D) the area between a neuron's cell body and its axon 
A) the connection between one node and the next 
B) the connection between the glia and a neuron 
C) the junction between an axon terminal and another neuron 
D) the area between a neuron's cell body and its axon

Question 10

The opening of "voltage sensitive" sodium (Na+) channels at a neuron's axon hillock results in

Accepted Answer

A) an action potential 
B) a refractory period 
C) an inhibitory postsynaptic potential 
D) an excitatory postsynaptic potential 
A) an action potential 
B) a refractory period 
C) an inhibitory postsynaptic potential 
D) an excitatory postsynaptic potential

Question 11

What does "retrograde neurotransmission" refer to?

Accepted Answer

This refers to a process in which, follo

A sudden change in electrical potential of a neuron membrane which travels along the neuron axon is called

What are two basic functional distinctions between synaptic neurotransmission and nonsynaptic diffusion neurotransmission (volume transmission) in the brain?

An action potential refers to

During an action potential, which of the following events occur?

In the human brain, the transmission of a stimulus along a neuron is electrical and its transmission between neurons is predominantly

The normal sequence of conduction of information through a single neuron is as follows:

What does depolarization in a neuron refer to?

What is a synapse?

The opening of "voltage sensitive" sodium (Na+) channels at a neuron's axon hillock results in

What does "retrograde neurotransmission" refer to?

Psychopharmacology in Perspective

Drug Classification and Behavioral Assessment

Basic Principles of Pharmacology

Synaptic Transmission, Drugs, and Chemical Neuroanatomy

Tolerance, Sensitization, Dependence, and Addiction

Psychomotor Stimulants and Antiparkinsonian Drugs

Antipsychotic Drugs and Neurochemical Hypotheses of Schizophrenia

Antidepressants and Mood Stabilizers

Sedative-Hypnotics, Anxiolytics, and Anticonvulsants

Drug Treatment of Cognitive Dysfunction

Naturally Occurring and Synthetic Opiates and Their Antagonists

Dissociative Anesthetics

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Exam 4: Excitability and Chemical Signaling in Nerve Cells

A sudden change in electrical potential of a neuron membrane which travels along the neuron axon is called

What are two basic functional distinctions between synaptic neurotransmission and nonsynaptic diffusion neurotransmission (volume transmission) in the brain?

An action potential refers to

During an action potential, which of the following events occur?

In the human brain, the transmission of a stimulus along a neuron is electrical and its transmission between neurons is predominantly

The normal sequence of conduction of information through a single neuron is as follows:

What does depolarization in a neuron refer to?

What is a synapse?

The opening of "voltage sensitive" sodium (Na+) channels at a neuron's axon hillock results in

What does "retrograde neurotransmission" refer to?

Psychopharmacology in Perspective

Drug Classification and Behavioral Assessment

Basic Principles of Pharmacology

Synaptic Transmission, Drugs, and Chemical Neuroanatomy

Tolerance, Sensitization, Dependence, and Addiction

Psychomotor Stimulants and Antiparkinsonian Drugs

Antipsychotic Drugs and Neurochemical Hypotheses of Schizophrenia

Antidepressants and Mood Stabilizers

Sedative-Hypnotics, Anxiolytics, and Anticonvulsants

Drug Treatment of Cognitive Dysfunction

Naturally Occurring and Synthetic Opiates and Their Antagonists

Dissociative Anesthetics

Filters