Question 1

Match up the receptor type with its action.

Accepted Answer

A)  metabotropic; direct opening of an ion channel 
B)  ionotropic; more time required to open an ion channel 
C)  metabotropic; G-protein activation leads to activation of a second messenger 
D)  metabotropic; second messenger effects are specific to opening ion channels 
E)  metabotropic; rapid and short-lived effects on ion channels 
A)  metabotropic; direct opening of an ion channel 
B)  ionotropic; more time required to open an ion channel 
C)  metabotropic; G-protein activation leads to activation of a second messenger 
D)  metabotropic; second messenger effects are specific to opening ion channels 
E)  metabotropic; rapid and short-lived effects on ion channels

Question 2

The ________ is comprised of the brain and spinal cord.

Accepted Answer

A)  peripheral nervous system 
B)  central nervous system 
C)  enteric nervous system 
D)  brainstem 
E)  antebrain 
A)  peripheral nervous system 
B)  central nervous system 
C)  enteric nervous system 
D)  brainstem 
E)  antebrain

Question 3

Match up the correct pairing of each cell structure with its function.

Accepted Answer

A)  mitochondria; production of cytoplasm 
B)  cytoskeleton; production of DNA 
C)  lipid bi-layer; formation of the cell membrane 
D)  synapse; production of ribosomes 
E)  microtubules; production of cytoplasm 
A)  mitochondria; production of cytoplasm 
B)  cytoskeleton; production of DNA 
C)  lipid bi-layer; formation of the cell membrane 
D)  synapse; production of ribosomes 
E)  microtubules; production of cytoplasm

Question 4

Which of the following events restores the membrane potential from the peak of the action potential back to the resting level?

Accepted Answer

A)  Sodium ions move into the cell. 
B)  Potassium ions move out of the cell. 
C)  Potassium ions move into the cell. 
D)  Chloride ions move into the cell. 
E)  Chloride ions are extruded from the cell. 
A)  Sodium ions move into the cell. 
B)  Potassium ions move out of the cell. 
C)  Potassium ions move into the cell. 
D)  Chloride ions move into the cell. 
E)  Chloride ions are extruded from the cell.

Question 5

The membrane of a nerve cell is comprised of

Accepted Answer

A)  protein molecules. 
B)  vesicle remnants. 
C)  a double layer of lipid molecules. 
D)  cytoplasm. 
E)  a double layer of protein molecules. 
A)  protein molecules. 
B)  vesicle remnants. 
C)  a double layer of lipid molecules. 
D)  cytoplasm. 
E)  a double layer of protein molecules.

Question 6

A key function of specialized lipid molecules located in a nerve cell is to

Accepted Answer

A)  detect the presence of chemicals inside the cell. 
B)  form the matrix that gives a neuron its shape.. 
C)  form channels to carry ions into and out of the cell. 
D)  transport hormones into blood stream. 
E)  induce DNA synthesis. 
A)  detect the presence of chemicals inside the cell. 
B)  form the matrix that gives a neuron its shape.. 
C)  form channels to carry ions into and out of the cell. 
D)  transport hormones into blood stream. 
E)  induce DNA synthesis.

Question 7

Which of the following is inserted into an axon to record electrical potentials?

Accepted Answer

A)  a single reference wire. 
B)  a microelectrode inserted into the axon interior 
C)  an oscilloscope 
D)  a voltmeter terminal 
E)  A thin metal cannula 
A)  a single reference wire. 
B)  a microelectrode inserted into the axon interior 
C)  an oscilloscope 
D)  a voltmeter terminal 
E)  A thin metal cannula

Question 8

What would be the effect of opening potassium channels in the axon membrane?

Accepted Answer

Potassium ions would leave the

Question 9

Toxic substances in the blood are detected at the ______ which in turn triggers vomiting.

Accepted Answer

A)  cerebellum 
B)  blood-brain barrier 
C)  hypothamus 
D)  amygdala 
E)  area postrema 
A)  cerebellum 
B)  blood-brain barrier 
C)  hypothamus 
D)  amygdala 
E)  area postrema

Question 10

Which of the following is true of neurotransmitter function?

Accepted Answer

A)  Neurotransmitters diffuse widely across the brain to exert changes in metabolism. 
B)  Neurotransmitters directly alter ion channels using a second-messenger chemical. 
C)  Neurotransmitters are released into the synapse from the cistaerna. 
D)  Neurotransmitters open ion channels in the postsynaptic membrane. 
E)  Neurotransmitters alter ion channel activity for minutes. 
A)  Neurotransmitters diffuse widely across the brain to exert changes in metabolism. 
B)  Neurotransmitters directly alter ion channels using a second-messenger chemical. 
C)  Neurotransmitters are released into the synapse from the cistaerna. 
D)  Neurotransmitters open ion channels in the postsynaptic membrane. 
E)  Neurotransmitters alter ion channel activity for minutes.

Question 11

Match the correct function with the appropriate neuronal organelle.

Accepted Answer

A)  mitochondria; extraction of energy from nutrients 
B)  mitochondria; formation of vesicles 
C)  microtubules; breakdown of proteins 
D)  microtubules; transport of chemicals across the synapse 
E)  cytoskeleton; extraction of energy from nutrients 
A)  mitochondria; extraction of energy from nutrients 
B)  mitochondria; formation of vesicles 
C)  microtubules; breakdown of proteins 
D)  microtubules; transport of chemicals across the synapse 
E)  cytoskeleton; extraction of energy from nutrients

Question 12

The key symptom of myasthenia gravis is

Accepted Answer

A)  fatigability. 
B)  mania and excitation. 
C)  depression and sleep disturbance. 
D)  inability to make coordinated movements. 
E)  impaired autoreceptor function. 
A)  fatigability. 
B)  mania and excitation. 
C)  depression and sleep disturbance. 
D)  inability to make coordinated movements. 
E)  impaired autoreceptor function.

Question 13

Which of the following is true of Schwann cells?

Accepted Answer

A)  Schwann cells are found within the brain. 
B)  Schwann cells provide myelin for central nerve cells. 
C)  A single Schwann cell wraps a single segment of a peripheral nerve cell. 
D)  A single Schwann cell myelinates up to 3 segments of axon membrane. 
E)  Schwann cells slow down conduction of action potentials along the axon. 
A)  Schwann cells are found within the brain. 
B)  Schwann cells provide myelin for central nerve cells. 
C)  A single Schwann cell wraps a single segment of a peripheral nerve cell. 
D)  A single Schwann cell myelinates up to 3 segments of axon membrane. 
E)  Schwann cells slow down conduction of action potentials along the axon.

Question 14

Which of the following is correct regarding neurons?

Accepted Answer

A)  Interneurons are located outside the brain and spinal cord. 
B)  Motor neurons gather information from the environment. 
C)  The number of neurons in the human nervous system is estimated at more than 100 billion. 
D)  Neurons are found only inside the brain and spinal cord. 
E)  The number of neurons in the human nervous system is estimated at less than 10 billion. 
A)  Interneurons are located outside the brain and spinal cord. 
B)  Motor neurons gather information from the environment. 
C)  The number of neurons in the human nervous system is estimated at more than 100 billion. 
D)  Neurons are found only inside the brain and spinal cord. 
E)  The number of neurons in the human nervous system is estimated at less than 10 billion.

Question 15

The blood-brain barrier is formed by astrocytes.

Accepted Answer

A) True 
 B)False

Question 16

The process which terminates the postsynaptic potentials induced by acetylcholine is

Accepted Answer

A)  disruption of the postsynaptic receptor. 
B)  enzymatic degradation via AChE. 
C)  inhibition of ACh synthesis. 
D)  facilitation of ACh release. 
E)  reuptake. 
A)  disruption of the postsynaptic receptor. 
B)  enzymatic degradation via AChE. 
C)  inhibition of ACh synthesis. 
D)  facilitation of ACh release. 
E)  reuptake.

Question 17

Autoreceptors are metabotropic receptors.

Accepted Answer

A) True 
 B)False

Question 18

Subthreshold depolarizations of the axon membrane

Accepted Answer

A)  are not conducted along the membrane. 
B)  remain the same size at each point along the membrane. 
C)  are just smaller versions of the action potential. 
D)  decrease in amplitude as they sweep along the membrane. 
E)  involve the closing of ion channels. 
A)  are not conducted along the membrane. 
B)  remain the same size at each point along the membrane. 
C)  are just smaller versions of the action potential. 
D)  decrease in amplitude as they sweep along the membrane. 
E)  involve the closing of ion channels.

Question 19

What is the general function of autoreceptors?

Accepted Answer

To modulate the inte

Question 20

A thick myelinated axon fiber will conduct an action potential more rapidly than will a thin unmyelinated fiber.

Accepted Answer

A) True 
 B)False

Match up the receptor type with its action.

The ________ is comprised of the brain and spinal cord.

Match up the correct pairing of each cell structure with its function.

Which of the following events restores the membrane potential from the peak of the action potential back to the resting level?

The membrane of a nerve cell is comprised of

A key function of specialized lipid molecules located in a nerve cell is to

Which of the following is inserted into an axon to record electrical potentials?

What would be the effect of opening potassium channels in the axon membrane?

Toxic substances in the blood are detected at the ______ which in turn triggers vomiting.

Which of the following is true of neurotransmitter function?

Match the correct function with the appropriate neuronal organelle.

The key symptom of myasthenia gravis is

Which of the following is true of Schwann cells?

Which of the following is correct regarding neurons?

The blood-brain barrier is formed by astrocytes.

The process which terminates the postsynaptic potentials induced by acetylcholine is

Autoreceptors are metabotropic receptors.

Subthreshold depolarizations of the axon membrane

What is the general function of autoreceptors?

A thick myelinated axon fiber will conduct an action potential more rapidly than will a thin unmyelinated fiber.

Origins of Behavioral Neuroscience

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia, Affective Disorders, and Anxiety Disorders

Autistic, Attention-Deficit/Hyperactivity, Stress, and Substance Abuse Disorders

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Exam 2: Structure and Functions of Cells of the Nervous System

Match up the receptor type with its action.

The ________ is comprised of the brain and spinal cord.

Match up the correct pairing of each cell structure with its function.

Which of the following events restores the membrane potential from the peak of the action potential back to the resting level?

The membrane of a nerve cell is comprised of

A key function of specialized lipid molecules located in a nerve cell is to

Which of the following is inserted into an axon to record electrical potentials?

What would be the effect of opening potassium channels in the axon membrane?

Toxic substances in the blood are detected at the ______ which in turn triggers vomiting.

Which of the following is true of neurotransmitter function?

Match the correct function with the appropriate neuronal organelle.

The key symptom of myasthenia gravis is

Which of the following is true of Schwann cells?

Which of the following is correct regarding neurons?

The blood-brain barrier is formed by astrocytes.

The process which terminates the postsynaptic potentials induced by acetylcholine is

Autoreceptors are metabotropic receptors.

Subthreshold depolarizations of the axon membrane

What is the general function of autoreceptors?

A thick myelinated axon fiber will conduct an action potential more rapidly than will a thin unmyelinated fiber.

Origins of Behavioral Neuroscience

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia, Affective Disorders, and Anxiety Disorders

Autistic, Attention-Deficit/Hyperactivity, Stress, and Substance Abuse Disorders

Filters