Question 1

A drug that inactivates AChE would be expected to

Accepted Answer

A)  prolong the effects of ACh in the synapse. 
B)  terminate the effects of ACh in the synapse. 
C)  speed up the synthesis of ACh. 
D)  impair the synthesis of ACh. 
E)  activate the presynaptic autoreceptor for ACh. 
A)  prolong the effects of ACh in the synapse. 
B)  terminate the effects of ACh in the synapse. 
C)  speed up the synthesis of ACh. 
D)  impair the synthesis of ACh. 
E)  activate the presynaptic autoreceptor for ACh.

Question 2

.Provide an overview of the ionic events that produce the action potential.

Accepted Answer

Movements of the membrane potential past

Question 3

Explain why saltatory conduction speeds up the velocity of action potentials.

Accepted Answer

In saltatory conduction,the ac

Question 4

Most ________ are secreted into the extracellular fluid from endocrine glands or tissues.

Accepted Answer

A)  neurotransmitters 
B)  neuropeptides 
C)  modulators 
D)  hormones 
E)  pheromones 
A)  neurotransmitters 
B)  neuropeptides 
C)  modulators 
D)  hormones 
E)  pheromones

Question 5

An electrical charge applied to an axon that moves the membrane potential from -70 mV to -45 mV will result in a(n)

Accepted Answer

A)  action potential. 
B)  local potential. 
C)  downward shift of the threshold of excitation. 
D)  upward shift of the membrane threshold. 
E)  long-term change in the membrane potential. 
A)  action potential. 
B)  local potential. 
C)  downward shift of the threshold of excitation. 
D)  upward shift of the membrane threshold. 
E)  long-term change in the membrane potential.

Question 6

Which of the following ion channel events will produce an EPSP?

Accepted Answer

A)  opening a sodium channel 
B)  closing a sodium channel 
C)  opening a potassium channel 
D)  opening a manganese channel 
E)  closing a calcium channel 
A)  opening a sodium channel 
B)  closing a sodium channel 
C)  opening a potassium channel 
D)  opening a manganese channel 
E)  closing a calcium channel

Question 7

In a neuron at rest,the inside of the cell is more negative than the cell exterior.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is true regarding the action potential (AP)?

Accepted Answer

A)  The AP is carried along the glial membrane. 
B)  The AP is always of the same amplitude and duration in a given cell. 
C)  The AP is a graded signal. 
D)  The AP is a long-lasting electrical signal. 
E)  The AP is due to chloride currents. 
A)  The AP is carried along the glial membrane. 
B)  The AP is always of the same amplitude and duration in a given cell. 
C)  The AP is a graded signal. 
D)  The AP is a long-lasting electrical signal. 
E)  The AP is due to chloride currents.

Question 9

Enzymatic inactivation allows for the rapid reuse of a transmitter molecule.

Accepted Answer

A) True 
 B)False

Question 10

Transmitter substances are secreted from the terminal buttons of a neuron.

Accepted Answer

A) True 
 B)False

Question 11

Explain how the nerve cell membrane acts as an integrator of incoming inputs.

Accepted Answer

Neurotransmitter-gated receptors can ope

Question 12

In a resting nerve cell,which of the forces listed below will act to push sodium ions into the cell?

Accepted Answer

A)  diffusion 
B)  osmotic pressure 
C)  sodium-potassium pump 
D)  ion channel inactivation 
E)  electrostatic pressure resulting from positive charge inside the axon 
A)  diffusion 
B)  osmotic pressure 
C)  sodium-potassium pump 
D)  ion channel inactivation 
E)  electrostatic pressure resulting from positive charge inside the axon

Question 13

Opening a chloride channel will neutralize an EPSP.

Accepted Answer

A) True 
 B)False

Question 14

Explain how the area postrema may play a role in minimizing poison toxicity.

Accepted Answer

Because the blood-brain barrier is weak

Question 15

Explain why the reuptake process has become a critical target for therapeutic drugs.

Accepted Answer

The postsynaptic action of many neurotra

Question 16

________ are positively 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 17

Neurotransmitter molecules are secreted from a(n)________ in response to the arrival of an action potential.

Accepted Answer

A)  glial cell 
B)  dendrite 
C)  axon terminal 
D)  mitochondrion 
E)  soma 
A)  glial cell 
B)  dendrite 
C)  axon terminal 
D)  mitochondrion 
E)  soma

Question 18

Which of the following is true of an action potential?

Accepted Answer

A)  The sodium channels are opened at a lower voltage than are potassium channels. 
B)  An action potential requires 5 msec for completion. 
C)  During an action potential, the interior becomes even more negative. 
D)  The potassium channels are opened at a lower voltage than are sodium channels. 
E)  The overshoot is due to a prolonged change in sodium conductance. 
A)  The sodium channels are opened at a lower voltage than are potassium channels. 
B)  An action potential requires 5 msec for completion. 
C)  During an action potential, the interior becomes even more negative. 
D)  The potassium channels are opened at a lower voltage than are sodium channels. 
E)  The overshoot is due to a prolonged change in sodium conductance.

Question 19

The ________ cells are the most important support cells of the central nervous system.

Accepted Answer

A)  Schwann 
B)  glial 
C)  Golgi 
D)  platelet 
E)  microtubule 
A)  Schwann 
B)  glial 
C)  Golgi 
D)  platelet 
E)  microtubule

Question 20

What would you expect to happen if the enzyme AChE were to be disabled in your body?

Accepted Answer

My ACh activity would greatly

A drug that inactivates AChE would be expected to

.Provide an overview of the ionic events that produce the action potential.

Explain why saltatory conduction speeds up the velocity of action potentials.

Most ________ are secreted into the extracellular fluid from endocrine glands or tissues.

An electrical charge applied to an axon that moves the membrane potential from -70 mV to -45 mV will result in a(n)

Which of the following ion channel events will produce an EPSP?

In a neuron at rest,the inside of the cell is more negative than the cell exterior.

Which of the following is true regarding the action potential (AP)?

Enzymatic inactivation allows for the rapid reuse of a transmitter molecule.

Transmitter substances are secreted from the terminal buttons of a neuron.

Explain how the nerve cell membrane acts as an integrator of incoming inputs.

In a resting nerve cell,which of the forces listed below will act to push sodium ions into the cell?

Opening a chloride channel will neutralize an EPSP.

Explain how the area postrema may play a role in minimizing poison toxicity.

Explain why the reuptake process has become a critical target for therapeutic drugs.

________ are positively charged particles.

Neurotransmitter molecules are secreted from a(n)________ in response to the arrival of an action potential.

Which of the following is true of an action potential?

The ________ cells are the most important support cells of the central nervous system.

What would you expect to happen if the enzyme AChE were to be disabled in your body?

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

A drug that inactivates AChE would be expected to

.Provide an overview of the ionic events that produce the action potential.

Explain why saltatory conduction speeds up the velocity of action potentials.

Most ________ are secreted into the extracellular fluid from endocrine glands or tissues.

An electrical charge applied to an axon that moves the membrane potential from -70 mV to -45 mV will result in a(n)

Which of the following ion channel events will produce an EPSP?

In a neuron at rest,the inside of the cell is more negative than the cell exterior.

Which of the following is true regarding the action potential (AP)?

Enzymatic inactivation allows for the rapid reuse of a transmitter molecule.

Transmitter substances are secreted from the terminal buttons of a neuron.

Explain how the nerve cell membrane acts as an integrator of incoming inputs.

In a resting nerve cell,which of the forces listed below will act to push sodium ions into the cell?

Opening a chloride channel will neutralize an EPSP.

Explain how the area postrema may play a role in minimizing poison toxicity.

Explain why the reuptake process has become a critical target for therapeutic drugs.

________ are positively charged particles.

Neurotransmitter molecules are secreted from a(n)________ in response to the arrival of an action potential.

Which of the following is true of an action potential?

The ________ cells are the most important support cells of the central nervous system.

What would you expect to happen if the enzyme AChE were to be disabled in your body?

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