Question 1

-Which inhibitory neurotransmitter is considered to be the most prevalent in the mammalian CNS?

Accepted Answer

A)  glycine 
B)  GABA 
C)  glutamate 
D)  serotonin 
E)  dopamine 
A)  glycine 
B)  GABA 
C)  glutamate 
D)  serotonin 
E)  dopamine

Question 2

Nitric oxide

Accepted Answer

A)  is a soluble gas. 
B)  is a small-molecule neurotransmitter. 
C)  participates in retrograde synaptic transmission. 
D)  all of the above 
E)  both A and B 
A)  is a soluble gas. 
B)  is a small-molecule neurotransmitter. 
C)  participates in retrograde synaptic transmission. 
D)  all of the above 
E)  both A and B

Question 3

Botox is

Accepted Answer

A)  a deadly poison. 
B)  used to reduce tremors. 
C)  a nicotinic antagonist. 
D)  all of the above 
E)  none of the above 
A)  a deadly poison. 
B)  used to reduce tremors. 
C)  a nicotinic antagonist. 
D)  all of the above 
E)  none of the above

Question 4

There are three kinds of spatial summation and

Accepted Answer

A)  one kind of temporal summation. 
B)  two kinds of temporal summation. 
C)  three kinds of temporal summation. 
D)  four kinds of temporal summation. 
E)  no such thing as temporal summation. 
A)  one kind of temporal summation. 
B)  two kinds of temporal summation. 
C)  three kinds of temporal summation. 
D)  four kinds of temporal summation. 
E)  no such thing as temporal summation.

Question 5

There is little resistance in the resting neural membrane to the passage of

Accepted Answer

A)  K- ions. 
B)  Cl- ions. 
C)  Na+ ions. 
D)  proteins. 
E)  receptors. 
A)  K- ions. 
B)  Cl- ions. 
C)  Na+ ions. 
D)  proteins. 
E)  receptors.

Question 6

At rest,

Accepted Answer

A)  a neuron has a membrane potential of about -70 mV. 
B)  the electrical charge outside the neuron is 70 mV less than inside the neuron. 
C)  a neuron is polarized. 
D)  all of the above 
E)  both A and C 
A)  a neuron has a membrane potential of about -70 mV. 
B)  the electrical charge outside the neuron is 70 mV less than inside the neuron. 
C)  a neuron is polarized. 
D)  all of the above 
E)  both A and C

Question 7

Conduction of APs from the axon into the cell body and dendrites of a multipolar neuron is

Accepted Answer

A)  extremely rare. 
B)  antidromic. 
C)  orthodromic. 
D)  both A and B 
E)  both A and C 
A)  extremely rare. 
B)  antidromic. 
C)  orthodromic. 
D)  both A and B 
E)  both A and C

Question 8

Action potentials can be conducted

Accepted Answer

A)  actively. 
B)  passively. 
C)  orthodromically. 
D)  antidromically. 
E)  all of the above 
A)  actively. 
B)  passively. 
C)  orthodromically. 
D)  antidromically. 
E)  all of the above

Question 9

Both presynaptic facilitation and inhibition are mediated by

Accepted Answer

A)  axoaxonic synapses. 
B)  axodendritic synapses. 
C)  dendrodendritic synapses. 
D)  axosomatic synapses. 
E)  both A and D 
A)  axoaxonic synapses. 
B)  axodendritic synapses. 
C)  dendrodendritic synapses. 
D)  axosomatic synapses. 
E)  both A and D

Question 10

In its resting state, a neuron is said to be

Accepted Answer

A)  polarized. 
B)  depolarized. 
C)  hypopolarized. 
D)  hyperpolarized. 
E)  firing. 
A)  polarized. 
B)  depolarized. 
C)  hypopolarized. 
D)  hyperpolarized. 
E)  firing.

Question 11

The release of neurotransmitter molecules from buttons is often triggered by

Accepted Answer

A)  an efflux of sodium ions. 
B)  an influx of calcium ions. 
C)  the sodium-potassium pump. 
D)  the arrival of an AP at the axon hillock. 
E)  the release of calcium ions from the buttons. 
A)  an efflux of sodium ions. 
B)  an influx of calcium ions. 
C)  the sodium-potassium pump. 
D)  the arrival of an AP at the axon hillock. 
E)  the release of calcium ions from the buttons.

Question 12

According to the calculations of Hodgkin and Huxley, the electrostatic force required to maintain the resting distribution across the neural membrane of

Accepted Answer

A)  Cl- is -70 mV. 
B)  K+ is about -90 mV. 
C)  Na+ is about -50 mV. 
D)  all of the above 
E)  both A and B 
A)  Cl- is -70 mV. 
B)  K+ is about -90 mV. 
C)  Na+ is about -50 mV. 
D)  all of the above 
E)  both A and B

Question 13

In large myelinated human motor neurons, impulses travel at about

Accepted Answer

A)  the speed of light. 
B)  186,000 miles per second. 
C)  1 meter per second. 
D)  60 meters per second. 
E)  100 meters per second. 
A)  the speed of light. 
B)  186,000 miles per second. 
C)  1 meter per second. 
D)  60 meters per second. 
E)  100 meters per second.

Question 14

Glycine, aspartate, and glutamate are

Accepted Answer

A)  amino acid neurotransmitters. 
B)  small-molecule neurotransmitters. 
C)  transmitters at fast-acting, directed synapses. 
D)  building blocks of proteins. 
E)  all of the above 
A)  amino acid neurotransmitters. 
B)  small-molecule neurotransmitters. 
C)  transmitters at fast-acting, directed synapses. 
D)  building blocks of proteins. 
E)  all of the above

Question 15

By binding to nicotinic cholinergic receptors, this drug produces paralysis and death:

Accepted Answer

A)  atropine. 
B)  chlordiazepoxide. 
C)  curare. 
D)  morphine. 
E)  belladonna. 
A)  atropine. 
B)  chlordiazepoxide. 
C)  curare. 
D)  morphine. 
E)  belladonna.

Question 16

Cocaine and amphetamine are

Accepted Answer

A)  antischizophrenic drugs. 
B)  used to treat Parkinson's disease. 
C)  dopamine agonists. 
D)  serotonin antagonists. 
E)  dopamine antagonists. 
A)  antischizophrenic drugs. 
B)  used to treat Parkinson's disease. 
C)  dopamine agonists. 
D)  serotonin antagonists. 
E)  dopamine antagonists.

Question 17

Dopamine is not an effective treatment for Parkinson's disease because

Accepted Answer

A)  dopaminergic neurons are restricted to the PNS. 
B)  Parkinson's disease is a cholinergic dysfunction. 
C)  Parkinson's disease is a noradrenergic dysfunction. 
D)  d'Orta is the treatment of choice. 
E)  dopamine does not readily penetrate the blood-brain barrier. 
A)  dopaminergic neurons are restricted to the PNS. 
B)  Parkinson's disease is a cholinergic dysfunction. 
C)  Parkinson's disease is a noradrenergic dysfunction. 
D)  d'Orta is the treatment of choice. 
E)  dopamine does not readily penetrate the blood-brain barrier.

Question 18

Vesicles travel from the cell body to the buttons

Accepted Answer

A)  on action potentials. 
B)  via microtubules. 
C)  at a rate of about 40 centimeters per second. 
D)  at a rate of about 40 centimeters per day. 
E)  both B and D 
A)  on action potentials. 
B)  via microtubules. 
C)  at a rate of about 40 centimeters per second. 
D)  at a rate of about 40 centimeters per day. 
E)  both B and D

Question 19

Neurons do not normally fire more than 1,000 times per second because

Accepted Answer

A)  the absolute refractory period is typically about 1 millisecond. 
B)  the relative refractory period is typically about 1 millisecond. 
C)  the total refractory period is typically about 1 millisecond. 
D)  the sodium-potassium pump cannot repolarize the cell in less than 1 millisecond. 
E)  higher rates over excite the neuron. 
A)  the absolute refractory period is typically about 1 millisecond. 
B)  the relative refractory period is typically about 1 millisecond. 
C)  the total refractory period is typically about 1 millisecond. 
D)  the sodium-potassium pump cannot repolarize the cell in less than 1 millisecond. 
E)  higher rates over excite the neuron.

Question 20

__________ are sometimes called electrical synapses.

Accepted Answer

The answer of __________ are sometimes called electrical synapses....

-Which inhibitory neurotransmitter is considered to be the most prevalent in the mammalian CNS?

Nitric oxide

Botox is

There are three kinds of spatial summation and

There is little resistance in the resting neural membrane to the passage of

At rest,

Conduction of APs from the axon into the cell body and dendrites of a multipolar neuron is

Action potentials can be conducted

Both presynaptic facilitation and inhibition are mediated by

In its resting state, a neuron is said to be

The release of neurotransmitter molecules from buttons is often triggered by

According to the calculations of Hodgkin and Huxley, the electrostatic force required to maintain the resting distribution across the neural membrane of

In large myelinated human motor neurons, impulses travel at about

Glycine, aspartate, and glutamate are

By binding to nicotinic cholinergic receptors, this drug produces paralysis and death:

Cocaine and amphetamine are

Dopamine is not an effective treatment for Parkinson's disease because

Vesicles travel from the cell body to the buttons

Neurons do not normally fire more than 1,000 times per second because

__________ are sometimes called electrical synapses.

Biopsychology As a Neuroscience

Evolution, Genetics, and Experience

The Anatomy of the Nervous System

The Research Methods of Biopsychology

The Visual System

Mechanisms of Perception

The Sensorimotor System

Development of the Nervous System

Brain Damage and Neuroplasticity

Learning, Memory, and Amnesia

Hunger, Eating, and Health

Hormones and Sex

Sleep, Dreaming, and Circadian Rhythms

Drug Addiction and the Brains Reward Circuits

Lateralization, Language, and the Split Brain

Biopsychology of Emotion, Stress, and Health

Biopsychology of Psychiatric Disorders

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Exam 4: Neural Conduction and Synaptic Transmission

-Which inhibitory neurotransmitter is considered to be the most prevalent in the mammalian CNS?

Nitric oxide

Botox is

There are three kinds of spatial summation and

There is little resistance in the resting neural membrane to the passage of

At rest,

Conduction of APs from the axon into the cell body and dendrites of a multipolar neuron is

Action potentials can be conducted

Both presynaptic facilitation and inhibition are mediated by

In its resting state, a neuron is said to be

The release of neurotransmitter molecules from buttons is often triggered by

According to the calculations of Hodgkin and Huxley, the electrostatic force required to maintain the resting distribution across the neural membrane of

In large myelinated human motor neurons, impulses travel at about

Glycine, aspartate, and glutamate are

By binding to nicotinic cholinergic receptors, this drug produces paralysis and death:

Cocaine and amphetamine are

Dopamine is not an effective treatment for Parkinson's disease because

Vesicles travel from the cell body to the buttons

Neurons do not normally fire more than 1,000 times per second because

__________ are sometimes called electrical synapses.

Biopsychology As a Neuroscience

Evolution, Genetics, and Experience

The Anatomy of the Nervous System

The Research Methods of Biopsychology

The Visual System

Mechanisms of Perception

The Sensorimotor System

Development of the Nervous System

Brain Damage and Neuroplasticity

Learning, Memory, and Amnesia

Hunger, Eating, and Health

Hormones and Sex

Sleep, Dreaming, and Circadian Rhythms

Drug Addiction and the Brains Reward Circuits

Lateralization, Language, and the Split Brain

Biopsychology of Emotion, Stress, and Health

Biopsychology of Psychiatric Disorders

Filters