Question 1

The ________ neuron is the most common nerve cell type in the central nervous system.

Accepted Answer

A)  apolar 
B)  multiglial 
C)  unipolar 
D)  bipolar 
E)  multipolar 
A)  apolar 
B)  multiglial 
C)  unipolar 
D)  bipolar 
E)  multipolar E

Question 2

A key function of glial cells is to

Accepted Answer

A)  provide nutrition to the brain. 
B)  remove physical debris from the blood. 
C) secrete cerebrospinal fluid.. 
D)  insulate a nerve cell from other nerve cells. 
E)  slow down conduction of action potentials. 
A)  provide nutrition to the brain. 
B)  remove physical debris from the blood. 
C) secrete cerebrospinal fluid.. 
D)  insulate a nerve cell from other nerve cells. 
E)  slow down conduction of action potentials. D

Question 3

Which of the following is true of synapses?

Accepted Answer

A)  Action potentials open chloride channels to release neurotransmitters. 
B)  Presynaptic voltage changes past threshold triggers the release of neurotransmitters. 
C)  The interior of the nerve cell becomes more negative during the action potential. 
D)  The exterior of the nerve cell becomes more positive during the action potential. 
E)  Glia are shown to slow down the release of transmitter substances from the axon. 
A)  Action potentials open chloride channels to release neurotransmitters. 
B)  Presynaptic voltage changes past threshold triggers the release of neurotransmitters. 
C)  The interior of the nerve cell becomes more negative during the action potential. 
D)  The exterior of the nerve cell becomes more positive during the action potential. 
E)  Glia are shown to slow down the release of transmitter substances from the axon. B

Question 4

The major symptom experienced by Katharyn D.in the chapter prologue was

Accepted Answer

A)  manic symptoms while at her job. 
B)  taking a long time to get to sleep at night. 
C)  excessive tiredness. 
D)  seizure-like activity just prior to a meal. 
E)  the recurrence of thoughts of dread and doom. 
A)  manic symptoms while at her job. 
B)  taking a long time to get to sleep at night. 
C)  excessive tiredness. 
D)  seizure-like activity just prior to a meal. 
E)  the recurrence of thoughts of dread and doom.

Question 5

Which of the following is true of ion distribution across the axon membrane?

Accepted Answer

A)  Sodium ions are concentrated outside the axon membrane. 
B)  Potassium ions are concentrated outside the axon membrane. 
C)  The action potential is the balance point between diffusion and electrostatic pressure. 
D)  Chloride ions are concentrated inside the axon membrane. 
E)  Sodium ions are concentrated inside the axon membrane. 
A)  Sodium ions are concentrated outside the axon membrane. 
B)  Potassium ions are concentrated outside the axon membrane. 
C)  The action potential is the balance point between diffusion and electrostatic pressure. 
D)  Chloride ions are concentrated inside the axon membrane. 
E)  Sodium ions are concentrated inside the axon membrane.

Question 6

The myelin sheath around an axon in the brain is formed by oligodendrocytes.

Accepted Answer

A) True 
 B)False

Question 7

The portion of a neuron that carries a signal toward the cell body is the

Accepted Answer

A)  soma. 
B)  axon terminal. 
C)  presynaptic membrane. 
D)  dendrite. 
E)  glial membrane. 
A)  soma. 
B)  axon terminal. 
C)  presynaptic membrane. 
D)  dendrite. 
E)  glial membrane.

Question 8

The sodium-potassium transporter keeps the intracellular concentration of sodium ions low by pushing them out of the axon.

Accepted Answer

A) True 
 B)False

Question 9

Saltatory conduction is rapid because

Accepted Answer

A)  the action potential does not have to depolarize every segment of the axon membrane. 
B)  myelinated cells have more leakage through the membrane. 
C)  myelinated axons are larger in diameter. 
D)  myelinated cells have more ion channels per unit area than do non-myelinated cells. 
E)  myelinated fibers have a lower threshold of activation. 
A)  the action potential does not have to depolarize every segment of the axon membrane. 
B)  myelinated cells have more leakage through the membrane. 
C)  myelinated axons are larger in diameter. 
D)  myelinated cells have more ion channels per unit area than do non-myelinated cells. 
E)  myelinated fibers have a lower threshold of activation.

Question 10

The ________ is defined as the difference in electrical charge between the inside and the outside of the axon membrane.

Accepted Answer

A)  membrane 
B)  local 
C)  glial 
D)  action 
E)  axon 
A)  membrane 
B)  local 
C)  glial 
D)  action 
E)  axon

Question 11

The ________ contain(s)the nerve cell nucleus and functions to ______.

Accepted Answer

A)  soma; provide for the life processes of the cell 
B)  axon; conduct action potentials 
C)  axon terminals; form the membrane of the nerve cell 
D)  dendrites; provide for the life processes of the cell 
E)  mitochondria; conduct action potentials 
A)  soma; provide for the life processes of the cell 
B)  axon; conduct action potentials 
C)  axon terminals; form the membrane of the nerve cell 
D)  dendrites; provide for the life processes of the cell 
E)  mitochondria; conduct action potentials

Question 12

The ________ are important for the process of myelination of nerve axon membranes in brain.

Accepted Answer

A)  oligodendrocytes 
B)  microglia 
C)  astrocytes 
D)  neurocytes 
E)  Schwann cells 
A)  oligodendrocytes 
B)  microglia 
C)  astrocytes 
D)  neurocytes 
E)  Schwann cells

Question 13

Match the correct function with the appropriate neuronal organelle.

Accepted Answer

A)  cell membrane; production of fat-like molecules 
B)  mitochondria; formation of vesicles 
C)  DNA; breakdown of proteins 
D)  microtubules; transport of molecules between the soma and the axon terminals 
E)  cytoskeleton; extraction of energy for cell use 
A)  cell membrane; production of fat-like molecules 
B)  mitochondria; formation of vesicles 
C)  DNA; breakdown of proteins 
D)  microtubules; transport of molecules between the soma and the axon terminals 
E)  cytoskeleton; extraction of energy for cell use

Question 14

________ are negatively charged particles.

Accepted Answer

A)  Transmitters 
B)  Solvents 
C)  Electrolytes 
D)  Cations 
E)  Anions 
A)  Transmitters 
B)  Solvents 
C)  Electrolytes 
D)  Cations 
E)  Anions

Question 15

The process by which similarly charged particles repel each other and are thus distributed throughout a medium is termed

Accepted Answer

A)  diffusion. 
B)  carrier-mediated transport. 
C)  refraction. 
D)  electrostatic pressure. 
E)  diffraction. 
A)  diffusion. 
B)  carrier-mediated transport. 
C)  refraction. 
D)  electrostatic pressure. 
E)  diffraction.

Question 16

________ are located entirely within the central nervous system.

Accepted Answer

A)  Sensory neurons 
B)  Motor neurons 
C)  Relay interneurons 
D)  Efferent interneurons 
E)  Multipolar neurons. 
A)  Sensory neurons 
B)  Motor neurons 
C)  Relay interneurons 
D)  Efferent interneurons 
E)  Multipolar neurons.

Question 17

Motor neurons gather information from the environment.

Accepted Answer

A) True 
 B)False

Question 18

The force of ________ moves sodium ions ________ the axon

Accepted Answer

A)  diffusion; into 
B)  retrograde transport; out of 
C)  diffusion; out of 
D)  electrostatic pressure; out of 
E)  sodium-potassium pump; into 
A)  diffusion; into 
B)  retrograde transport; out of 
C)  diffusion; out of 
D)  electrostatic pressure; out of 
E)  sodium-potassium pump; into

Question 19

The neuron region that resembles a tree is the

Accepted Answer

A)  soma. 
B)  axon. 
C)  dendrites. 
D)  terminal buttons. 
E)  cell body. 
A)  soma. 
B)  axon. 
C)  dendrites. 
D)  terminal buttons. 
E)  cell body.

Question 20

Which of the following is true of the blood-brain barrier?

Accepted Answer

A)  The barrier is uniform throughout the brain. 
B)  The barrier is selectively permeable. 
C)  The barrier functions to regulate the chemical composition of the cerebrospinal fluid. 
D)  The barrier is formed by Schwann cells that line the capillaries of the brain. 
E) The barrier is formed by astrocytes. 
A)  The barrier is uniform throughout the brain. 
B)  The barrier is selectively permeable. 
C)  The barrier functions to regulate the chemical composition of the cerebrospinal fluid. 
D)  The barrier is formed by Schwann cells that line the capillaries of the brain. 
E) The barrier is formed by astrocytes.

The ________ neuron is the most common nerve cell type in the central nervous system.

A key function of glial cells is to

Which of the following is true of synapses?

The major symptom experienced by Katharyn D.in the chapter prologue was

Which of the following is true of ion distribution across the axon membrane?

The myelin sheath around an axon in the brain is formed by oligodendrocytes.

The portion of a neuron that carries a signal toward the cell body is the

The sodium-potassium transporter keeps the intracellular concentration of sodium ions low by pushing them out of the axon.

Saltatory conduction is rapid because

The ________ is defined as the difference in electrical charge between the inside and the outside of the axon membrane.

The __ contain(s)the nerve cell nucleus and functions to .

The ________ are important for the process of myelination of nerve axon membranes in brain.

Match the correct function with the appropriate neuronal organelle.

________ are negatively charged particles.

The process by which similarly charged particles repel each other and are thus distributed throughout a medium is termed

________ are located entirely within the central nervous system.

Motor neurons gather information from the environment.

The force of moves sodium ions the axon

The neuron region that resembles a tree is the

Which of the following is true of the blood-brain barrier?

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

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

The ________ neuron is the most common nerve cell type in the central nervous system.

A key function of glial cells is to

Which of the following is true of synapses?

The major symptom experienced by Katharyn D.in the chapter prologue was

Which of the following is true of ion distribution across the axon membrane?

The myelin sheath around an axon in the brain is formed by oligodendrocytes.

The portion of a neuron that carries a signal toward the cell body is the

The sodium-potassium transporter keeps the intracellular concentration of sodium ions low by pushing them out of the axon.

Saltatory conduction is rapid because

The ________ is defined as the difference in electrical charge between the inside and the outside of the axon membrane.

The ________ contain(s)the nerve cell nucleus and functions to ______.

The ________ are important for the process of myelination of nerve axon membranes in brain.

Match the correct function with the appropriate neuronal organelle.

________ are negatively charged particles.

The process by which similarly charged particles repel each other and are thus distributed throughout a medium is termed

________ are located entirely within the central nervous system.

Motor neurons gather information from the environment.

The force of ________ moves sodium ions ________ the axon

The neuron region that resembles a tree is the

Which of the following is true of the blood-brain barrier?

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

The __ contain(s)the nerve cell nucleus and functions to .

The force of moves sodium ions the axon