Question 1

Brain cells die naturally throughout your lifetime.

Accepted Answer

A) True 
 B)False

Question 2

After being released, neurotransmitters are removed from the synaptic cleft through a process of:

Accepted Answer

A) chaotic 
A) reuptake 
B) degradation 
B) neutral 
A) chaotic 
A) reuptake 
B) degradation 
B) neutral

Question 3

Some synapses, know as gap junctions, allow what kind of signaling?

Accepted Answer

A) Protein" 
B) Electrical" 
C) Chemical" 
D) Ionic" 
A) Protein" 
B) Electrical" 
C) Chemical" 
D) Ionic"

Question 4

Complex behavior is likely accompanied by increasing neural complexity that occurs between:

Accepted Answer

A) Glial cells and neurons" 
B) Sensory and motor neurons" 
C) Dendrites and axons" 
D) Bipolar cells" 
A) Glial cells and neurons" 
B) Sensory and motor neurons" 
C) Dendrites and axons" 
D) Bipolar cells"

Question 5

The number of discrete cells in the human brain is estimated to be in the:

Accepted Answer

A) trillions 
B) millions 
C) thousands 
D) billions 
A) trillions 
B) millions 
C) thousands 
D) billions

Question 6

In a neuron, chemical signals are collected by the:

Accepted Answer

A) Cell body" 
B) Axon terminals" 
C) Dendrites" 
D) Axons" 
A) Cell body" 
B) Axon terminals" 
C) Dendrites" 
D) Axons"

Question 7

All axons are myelinated.

Accepted Answer

A) True 
 B)False

Question 8

Similar to communication in modern computers, action potentials are:

Accepted Answer

A) High or low" 
B) All or none" 
C) Big or small" 
D) Fast or slow" 
A) High or low" 
B) All or none" 
C) Big or small" 
D) Fast or slow"

Question 9

Cocaine prevents the reuptake of dopamine, making it an ______ drug.

Accepted Answer

A) Antagonist" 
B) Indirect Agonist" 
C) Excitatory" 
D) Inhibitory" 
A) Antagonist" 
B) Indirect Agonist" 
C) Excitatory" 
D) Inhibitory"

Question 10

Why are we able to do so many complicated tasks that computers are unable to do, even though computers are much faster than our brains?

Accepted Answer

A) Our brains are trained over time to do these tasks, but we have been unable to do the same with computers." 
B) Our brains have a small number of streamlined cells that make processing faster." 
C) Computers actually can do the same complicated tasks that humans can do." 
D) Our brains have vast quantities of cells that allows for parallel interactions." 
A) Our brains are trained over time to do these tasks, but we have been unable to do the same with computers." 
B) Our brains have a small number of streamlined cells that make processing faster." 
C) Computers actually can do the same complicated tasks that humans can do." 
D) Our brains have vast quantities of cells that allows for parallel interactions."

Question 11

Rate coding is preferable to a single spike because the response of a given neuron is _____, and it may fire even in the absence of external sitmulation.

Accepted Answer

A) probability codes 
B) random 
C) fixed 
D) frequency codes 
A) probability codes 
B) random 
C) fixed 
D) frequency codes

Question 12

There is a small space between the pre- and postsynaptic that allows the neurotransmitter concentration to rise and decay rapidly. This space is called the:

Accepted Answer

A) Postsynaptic target" 
B) Node of Ranvier" 
C) Synaptic vesicle" 
D) Synaptic cleft" 
A) Postsynaptic target" 
B) Node of Ranvier" 
C) Synaptic vesicle" 
D) Synaptic cleft"

Question 13

Astrocytes are critical for which of the following?

Accepted Answer

A) Physical structural support" 
B) Repair of injury in the central nervous system" 
C) Release of chemical signals" 
D) All of the above" 
A) Physical structural support" 
B) Repair of injury in the central nervous system" 
C) Release of chemical signals" 
D) All of the above"

Question 14

A sudden depolarizing voltage change in a neuron is known as:

Accepted Answer

A) A spike" 
B) An action potential" 
C) A nerve impulse" 
D) All of the above" 
A) A spike" 
B) An action potential" 
C) A nerve impulse" 
D) All of the above"

Question 15

Peptide neurotransmitters include:

Accepted Answer

A) Serotonin and melatonin" 
B) Somatostatin and cholecystokinin" 
C) Nitric oxide and carbon monoxide" 
D) Glycine and GABA" 
A) Serotonin and melatonin" 
B) Somatostatin and cholecystokinin" 
C) Nitric oxide and carbon monoxide" 
D) Glycine and GABA"

Question 16

Explain the various functions of glial cells in the central nervous system.

Accepted Answer

Glial cells, also known as neuroglia, ar

Question 17

Why would it be impossible to measure all the neurons in the human brain simultaneously using microelectrodes? Can you think of possible alternative approaches for measuring all neurons simultaneously?

Accepted Answer

It would be impossible to measure all th

Question 18

The axon terminals are responsible for:

Accepted Answer

A) Collecting information from chemical cells" 
B) Transporting signals across long distances" 
C) Integrating signals coming from the dendrites" 
D) Releasing chemicals into the spaces between cells" 
A) Collecting information from chemical cells" 
B) Transporting signals across long distances" 
C) Integrating signals coming from the dendrites" 
D) Releasing chemicals into the spaces between cells"

Question 19

Selective serotonin reuptake inhibitors (SSRI) are classified as agonists. After taking an SSRI, we would expect an increase in serotonin in the:

Accepted Answer

A) Presynaptic cells" 
B) Axon terminals" 
C) Synaptic cleft" 
D) Soma" 
A) Presynaptic cells" 
B) Axon terminals" 
C) Synaptic cleft" 
D) Soma"

Question 20

The two basic building blocks of the nervous system are neurons and:

Accepted Answer

A) Proteins" 
B) Glial cells" 
C) Neurotransmitters" 
D) Dendrites" 
A) Proteins" 
B) Glial cells" 
C) Neurotransmitters" 
D) Dendrites"

Brain cells die naturally throughout your lifetime.

After being released, neurotransmitters are removed from the synaptic cleft through a process of: A)chaotic

Some synapses, know as gap junctions, allow what kind of signaling?

Complex behavior is likely accompanied by increasing neural complexity that occurs between:

The number of discrete cells in the human brain is estimated to be in the:

In a neuron, chemical signals are collected by the:

All axons are myelinated.

Similar to communication in modern computers, action potentials are:

Cocaine prevents the reuptake of dopamine, making it an ______ drug.

Why are we able to do so many complicated tasks that computers are unable to do, even though computers are much faster than our brains?

Rate coding is preferable to a single spike because the response of a given neuron is _____, and it may fire even in the absence of external sitmulation.

There is a small space between the pre- and postsynaptic that allows the neurotransmitter concentration to rise and decay rapidly. This space is called the:

Astrocytes are critical for which of the following?

A sudden depolarizing voltage change in a neuron is known as:

Peptide neurotransmitters include:

Explain the various functions of glial cells in the central nervous system.

Why would it be impossible to measure all the neurons in the human brain simultaneously using microelectrodes? Can you think of possible alternative approaches for measuring all neurons simultaneously?

The axon terminals are responsible for:

Selective serotonin reuptake inhibitors (SSRI) are classified as agonists. After taking an SSRI, we would expect an increase in serotonin in the:

The two basic building blocks of the nervous system are neurons and:

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The Brain and Nervous System

Neuroplasticity

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Exam 3: Neurons and Synapses

Brain cells die naturally throughout your lifetime.

After being released, neurotransmitters are removed from the synaptic cleft through a process of: A)chaotic

Some synapses, know as gap junctions, allow what kind of signaling?

Complex behavior is likely accompanied by increasing neural complexity that occurs between:

The number of discrete cells in the human brain is estimated to be in the:

In a neuron, chemical signals are collected by the:

All axons are myelinated.

Similar to communication in modern computers, action potentials are:

Cocaine prevents the reuptake of dopamine, making it an ______ drug.

Why are we able to do so many complicated tasks that computers are unable to do, even though computers are much faster than our brains?

Rate coding is preferable to a single spike because the response of a given neuron is _____, and it may fire even in the absence of external sitmulation.

There is a small space between the pre- and postsynaptic that allows the neurotransmitter concentration to rise and decay rapidly. This space is called the:

Astrocytes are critical for which of the following?

A sudden depolarizing voltage change in a neuron is known as:

Peptide neurotransmitters include:

Explain the various functions of glial cells in the central nervous system.

Why would it be impossible to measure all the neurons in the human brain simultaneously using microelectrodes? Can you think of possible alternative approaches for measuring all neurons simultaneously?

The axon terminals are responsible for:

Selective serotonin reuptake inhibitors (SSRI) are classified as agonists. After taking an SSRI, we would expect an increase in serotonin in the:

The two basic building blocks of the nervous system are neurons and:

Online Practice Questions

The Brain and Nervous System

Neuroplasticity

Vision

Other Senses

The Motor System

Attention and Consciousness

Memory

Sleep

Language and Lateralization

Decision Making

Emotions

Motivation and Reward

Social Cognition

Neurological and Psychiatric Disorders

Filters