Question 1

The resting potential of a neuron has a _____ charge.

Accepted Answer

A) chaotic 
B) neutral 
C) negative 
D) positive 
A) chaotic 
B) neutral 
C) negative 
D) positive

Question 2

The glial cells play several roles, including:

Accepted Answer

A) Determining the extent to which networks of neurons can modify their connections" 
B) Providing ways to speed up the signaling from neurons" 
C) Regulating the concentrations of extracellular chemicals" 
D) All of the above" 
A) Determining the extent to which networks of neurons can modify their connections" 
B) Providing ways to speed up the signaling from neurons" 
C) Regulating the concentrations of extracellular chemicals" 
D) All of the above"

Question 3

Neurotransmitter is released into the synaptic cleft after:

Accepted Answer

A) Calcium ions enter the axon terminal" 
B) The neuron has depolarized" 
C) The action potential has reached the axon terminal" 
D) All of the above" 
A) Calcium ions enter the axon terminal" 
B) The neuron has depolarized" 
C) The action potential has reached the axon terminal" 
D) All of the above"

Question 4

We know that a particular neuron is responsive to a stimulus because it _____ when the stimulus is presented.

Accepted Answer

A) Sends a sustained spike" 
B) Maintains its rate of spiking" 
C) increases its rate of spiking" 
D) None of the above" 
A) Sends a sustained spike" 
B) Maintains its rate of spiking" 
C) increases its rate of spiking" 
D) None of the above"

Question 5

Direct antagonists are drugs that dampen or block normal _____ function.

Accepted Answer

A) Neurotransmitter" 
B) Receptor" 
C) Soma" 
D) Axon" 
A) Neurotransmitter" 
B) Receptor" 
C) Soma" 
D) Axon"

Question 6

Neurotransmitters do not always move from the axon transmitter of one cell to the dendrites of another. These transmitters move backwards, from the dendrites to the axon terminal:

Accepted Answer

A) Peptide neurotransmitters" 
B) Catecholamines" 
C) Retrograde transmitters" 
D) Monoamines" 
A) Peptide neurotransmitters" 
B) Catecholamines" 
C) Retrograde transmitters" 
D) Monoamines"

Question 7

Local anesthetic works by blocking:

Accepted Answer

A) Receptor sites" 
B) Nodes of Ranvier" 
C) Neurotransmitter reuptake" 
D) Action potentials" 
A) Receptor sites" 
B) Nodes of Ranvier" 
C) Neurotransmitter reuptake" 
D) Action potentials"

Question 8

When a voltage-gated sodium ion channel is opened, sodium ions are _____.

Accepted Answer

A) Released out of the neuron" 
B) Blocked from entering the neuron" 
C) Driven into the neuron" 
D) None of the above" 
A) Released out of the neuron" 
B) Blocked from entering the neuron" 
C) Driven into the neuron" 
D) None of the above"

Question 9

Because a neuron receives information from thousands of surrounding neurons, it can be thought of as a ______ detector.

Accepted Answer

The answer of Because a neuron receives information from thousands...

Question 10

The release of _______ allows neurons to communicate with each other.

Accepted Answer

The answer of The release of _______ allows neurons to...

Question 11

When a group of neurons release excitatory neurotransmitters to each other, we call this group a:

Accepted Answer

A) School" 
B) Collaboration" 
C) Coalition" 
D) Network" 
A) School" 
B) Collaboration" 
C) Coalition" 
D) Network"

Question 12

Compared to a computer, the human brain has _____ computational units.

Accepted Answer

A) no 
A) Otto Loewi 
B) many fewer 
B) Santiago Ramón y Cajal 
A) no 
A) Otto Loewi 
B) many fewer 
B) Santiago Ramón y Cajal

Question 13

The function of Schwann cells is most similar to which other cell type?

Accepted Answer

A) bipolar neurons 
B) oligodendrocytes 
C) astrocytes 
D) multipolar neurons 
A) bipolar neurons 
B) oligodendrocytes 
C) astrocytes 
D) multipolar neurons

Question 14

What happens when the myelin sheath of a neuron is damaged?

Accepted Answer

A) The soma is also destroyed." 
B) Neurons cannot properly conduct signals, and communication is disrupted." 
C) The reuptake of neurotransmitters is suspended." 
D) Neurons conduct signals too rapidly." 
A) The soma is also destroyed." 
B) Neurons cannot properly conduct signals, and communication is disrupted." 
C) The reuptake of neurotransmitters is suspended." 
D) Neurons conduct signals too rapidly."

Question 15

Name the four zones of importance in a neuron, and explain the function of each zone.

Accepted Answer

The four zones of importance in a neuron

Question 16

The membrane potential of a neuron can be changed when:

Accepted Answer

A) The myelin sheath is damaged" 
B) Ions move across the membrane into the cell" 
C) Neurotransmitters are diffused" 
D) All of the above" 
A) The myelin sheath is damaged" 
B) Ions move across the membrane into the cell" 
C) Neurotransmitters are diffused" 
D) All of the above"

Question 17

When the inside of a neuron is more negatively charged than the outside of the neuron and sodium ions are attracted inside, this is due to the:

Accepted Answer

A) Axon hillock" 
B) Sodium ions do not flow into the cell" 
C) Electrical gradient" 
D) Concentration gradient" 
A) Axon hillock" 
B) Sodium ions do not flow into the cell" 
C) Electrical gradient" 
D) Concentration gradient"

Question 18

A major roadblock to our understanding of large-scale population activity is:

Accepted Answer

A) the lack of behaviors likely supported by population activity 
B) lack of computational power 
C) the technical inability to precisely measure activity from large populations 
D) lack of relevant theory to guide hypothesis generation 
A) the lack of behaviors likely supported by population activity 
B) lack of computational power 
C) the technical inability to precisely measure activity from large populations 
D) lack of relevant theory to guide hypothesis generation

Question 19

Neurotransmitter molecules are released by the presynaptic cells, then float through the synaptic cleft until they bind onto:

Accepted Answer

A) Transporters" 
B) Synaptic vesicles" 
C) Receptors" 
D) Amino acids" 
A) Transporters" 
B) Synaptic vesicles" 
C) Receptors" 
D) Amino acids"

Question 20

Over time, the number of synapses in the brain:

Accepted Answer

A) Stays the same" 
B) Decreases" 
C) Grows exponentially" 
D) Increases" 
A) Stays the same" 
B) Decreases" 
C) Grows exponentially" 
D) Increases"

The resting potential of a neuron has a _____ charge.

The glial cells play several roles, including:

Neurotransmitter is released into the synaptic cleft after:

We know that a particular neuron is responsive to a stimulus because it _____ when the stimulus is presented.

Direct antagonists are drugs that dampen or block normal _____ function.

Neurotransmitters do not always move from the axon transmitter of one cell to the dendrites of another. These transmitters move backwards, from the dendrites to the axon terminal:

Local anesthetic works by blocking:

When a voltage-gated sodium ion channel is opened, sodium ions are _____.

Because a neuron receives information from thousands of surrounding neurons, it can be thought of as a ______ detector.

The release of _______ allows neurons to communicate with each other.

When a group of neurons release excitatory neurotransmitters to each other, we call this group a:

Compared to a computer, the human brain has _____ computational units. A)no

The function of Schwann cells is most similar to which other cell type?

What happens when the myelin sheath of a neuron is damaged?

Name the four zones of importance in a neuron, and explain the function of each zone.

The membrane potential of a neuron can be changed when:

When the inside of a neuron is more negatively charged than the outside of the neuron and sodium ions are attracted inside, this is due to the:

A major roadblock to our understanding of large-scale population activity is:

Neurotransmitter molecules are released by the presynaptic cells, then float through the synaptic cleft until they bind onto:

Over time, the number of synapses in the brain:

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Exam 3: Neurons and Synapses

The resting potential of a neuron has a _____ charge.

The glial cells play several roles, including:

Neurotransmitter is released into the synaptic cleft after:

We know that a particular neuron is responsive to a stimulus because it _____ when the stimulus is presented.

Direct antagonists are drugs that dampen or block normal _____ function.

Neurotransmitters do not always move from the axon transmitter of one cell to the dendrites of another. These transmitters move backwards, from the dendrites to the axon terminal:

Local anesthetic works by blocking:

When a voltage-gated sodium ion channel is opened, sodium ions are _____.

Because a neuron receives information from thousands of surrounding neurons, it can be thought of as a ______ detector.

The release of _______ allows neurons to communicate with each other.

When a group of neurons release excitatory neurotransmitters to each other, we call this group a:

Compared to a computer, the human brain has _____ computational units. A)no

The function of Schwann cells is most similar to which other cell type?

What happens when the myelin sheath of a neuron is damaged?

Name the four zones of importance in a neuron, and explain the function of each zone.

The membrane potential of a neuron can be changed when:

When the inside of a neuron is more negatively charged than the outside of the neuron and sodium ions are attracted inside, this is due to the:

A major roadblock to our understanding of large-scale population activity is:

Neurotransmitter molecules are released by the presynaptic cells, then float through the synaptic cleft until they bind onto:

Over time, the number of synapses in the brain:

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