Question 1

"Reptilian stare" is sometimes used to describe the widely opened,unblinking eyes and motionless face of

Accepted Answer

A)   Parkinson's disease.
B)   multiple sclerosis.
C)   old age.
D)   infancy.
E)   Alzheimer's disease.

Question 2

The receptors of the neuromuscular junction are

Accepted Answer

A)   cholinergic.
B)   nicotinic.
C)   muscarinic.
D)   both A and B
E)   both A and C

Question 3

Discuss the synthesis,packaging,transport,and release of conventional small and large types of neurotransmitters.

Accepted Answer

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Question 4

A ligand of acetylcholine is a substance that

Accepted Answer

A)   binds to acetylcholine.
B)   stimulates acetylcholine's synthesis.
C)   facilitates acetylcholine's release.
D)   degrades acetylcholine.
E)   inhibits acetylcholine.

Question 5

Glial cells have been shown to

Accepted Answer

A)   release chemical transmitters.
B)   contain receptors for neurotransmitters.
C)   conduct signals.
D)   influence synaptic transmission.
E)   all of the above

Question 6

How far do most postsynaptic potentials travel before they die out?

Accepted Answer

A)   to the axon hillock
B)   to the terminal buttons
C)   no more than a couple of millimeters
D)   about 50 millimeters
E)   both B and D

Question 7

With respect to the maximum speed of axonal conduction in motor neurons,cats are to humans as

Accepted Answer

A)   50 is to 100 meters per second.
B)   80 is to 100 meters per second.
C)   25 is to 100 meters per second.
D)   82 is to 100 meters per second.
E)   100 is to 60 meters per second.

Question 8

In comparison to ionotropic receptors,metabotropic receptors

Accepted Answer

A)   are more prevalent.
B)   produce longer lasting effects.
C)   produce effects that are more diffuse.
D)   produce effects that take longer to develop.
E)   all of the above

Question 9

The abbreviation 5-HT stands for

Accepted Answer

A)   serotonin.
B)   dopamine.
C)   acetylcholine.
D)   both A and B
E)   none of the above

Question 10

Autoreceptors of a neuron are sensitive to the neuron's own

Accepted Answer

A)   EPSPs.
B)   neurotransmitter.
C)   IPSPs.
D)   second messengers.
E)   APs.

Question 11

A membrane potential is the difference in electrical charge between

Accepted Answer

A)   neuron membranes.
B)   synapses and cell bodies.
C)   the inside and outside of a cell.
D)   nuclei and tracts.
E)   ganglia and nerves.

Question 12

The finding that antischizophrenic drugs often produce the symptoms of __________ disease implicated dopamine in the development of schizophrenia.

Accepted Answer

The answer of The finding that antischizophrenic drugs often produce...

Question 13

In neurons without axons,conduction occurs entirely in the form of

Accepted Answer

A)   passive, decrementally conducted potentials.
B)   action potentials.
C)   all-or-none potentials.
D)   saltatory conduction.
E)   excitation.

Question 14

Drugs that bind to a neurotransmitter's receptors on the postsynaptic membrane without activating them are

Accepted Answer

A)   receptor blockers.
B)   agonists of the neurotransmitter.
C)   antagonists of the neurotransmitter.
D)   both A and B
E)   both A and C

Question 15

Second messengers are formed in the

Accepted Answer

A)   presynaptic neuron.
B)   postsynaptic neuron.
C)   synaptic cleft.
D)   vesicles.
E)   mitochondria.

Question 16

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

Accepted Answer

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

Question 17

__________ are sometimes called electrical synapses.

Accepted Answer

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

Question 18

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

Accepted Answer

A)   GABA
B)   glutamate
C)   dopamine
D)   acetylcholine
E)   none of the above

Question 19

Conduction of action potentials along an axon is

Accepted Answer

A)   instantaneous.
B)   decremental.
C)   nondecremental.
D)   entirely passive.
E)   always saltatory.

Question 20

Hyperpolarization is to depolarization as

Accepted Answer

A)   inhibitory is to excitatory.
B)   IPSPs are to EPSPs.
C)   APs are to IPSPs.
D)   APs are to EPSPs.
E)   many APs are to few APs.

Exam 4: Neural Conduction and Synaptic Transmission

Glial cells have been shown to

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__________ are sometimes called electrical synapses.

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Drugs that bind to a neurotransmitter's receptors on the postsynaptic membrane without activating them are

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How far do most postsynaptic potentials travel before they die out?

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Conduction of action potentials along an axon is

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

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Autoreceptors of a neuron are sensitive to the neuron's own

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A membrane potential is the difference in electrical charge between

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Discuss the synthesis,packaging,transport,and release of conventional small and large types of neurotransmitters.

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Second messengers are formed in the

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In comparison to ionotropic receptors,metabotropic receptors

Correct AnswerverifiedShow Answer

With respect to the maximum speed of axonal conduction in motor neurons,cats are to humans as

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The finding that antischizophrenic drugs often produce the symptoms of __________ disease implicated dopamine in the development of schizophrenia.

Correct AnswerverifiedShow Answer

"Reptilian stare" is sometimes used to describe the widely opened,unblinking eyes and motionless face of

Correct AnswerverifiedShow Answer

The abbreviation 5-HT stands for

Correct AnswerverifiedShow Answer

Hyperpolarization is to depolarization as

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

Correct AnswerverifiedShow Answer

In neurons without axons,conduction occurs entirely in the form of

Correct AnswerverifiedShow Answer

A ligand of acetylcholine is a substance that

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The receptors of the neuromuscular junction are

Correct AnswerverifiedShow Answer

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