Question 1

The opposite of habituation is:

Accepted Answer

A)  sensitization
B)  learning
C)  regression
D)  remission

Question 2

What are the different ways in which a neurotransmitter could become deactivated?

Accepted Answer

Neurotransmitters are chemical messenger...

Question 3

Posttraumatic stress disorder (PTSD)  has been linked with a(n) :

Accepted Answer

A)  increased response to stimuli.
B)  decreased response to stimuli.
C)  decrease in acetylcholine.
D)  decreased response to stimuli and a decrease in acetylcholine.

Question 4

Compared with chemical synapses, electrical synapses:

Accepted Answer

A)  transmit messages faster.
B)  transmit messages more slowly.
C)  require more metabolic energy.
D)  do not require presynaptic activation.

Question 5

Which two neurotransmitters are synthesized from the same precursor molecule?

Accepted Answer

A)  glycine and dopamine
B)  glutamate and GABA
C)  histamine and serotonin
D)  acetylcholine and glycine

Question 6

_____ is a standard treatment for patients with Parkinson disease.

Accepted Answer

A)  Acetylcholine
B)  Norepinephrine
C)  L-dopa
D)  Dopamine

Question 7

Acetylcholine is the main neurotransmitter for:

Accepted Answer

A)  all skeletal motor synapses.
B)  95 percent of skeletal motor synapses.
C)  half of skeletal motor synapses.
D)  no skeletal motor synapses.

Question 8

A Renshaw loop consists of:

Accepted Answer

A)  an interneuron that inhibits the activity of a motor neuron.
B)  a sensory neuron that increases the activity of a motor neuron.
C)  an interneuron that increases the activity of a motor neuron.
D)  a sensory neuron that increases the activity of an interneuron.

Question 9

_____ is a neurotransmitter that is synthesized from tryptophan.

Accepted Answer

A)  Dopamine
B)  L-dopa
C)  Glutamate
D)  Serotonin

Question 10

A synaptic cleft is the space between:

Accepted Answer

A)  a synaptic vesicle and an axon terminal.
B)  a dendrite and an ion channel.
C)  an ion channel and an axon terminal.
D)  an axon terminal and a dendrite.

Question 11

_____ synapses are terminals that have no specific target.

Accepted Answer

A)  Axoextracellular
B)  Axosomatic
C)  Axodendritic
D)  Axosynaptic

Question 12

What is the predominant inhibitory neurotransmitter in the forebrain and cerebellum?

Accepted Answer

A)  GABA
B)  glutamate
C)  glycine
D)  histamine

Question 13

Which of the following is a criterion for identifying a neurotransmitter?

Accepted Answer

A)  The transmitter must be synthesized in the neuron or otherwise be present in it.
B)  When the neuron is active, the transmitter must be released and must produce a response in some target.
C)  A mechanism must exist for removing the transmitter from its site of action after its work is done.
D)  All of the above are criteria for identifying a neurotransmitter.

Question 14

Describe the main class of lipid transmitters, endocannabinoids, and their effect on bodily processes.

Accepted Answer

The main class of lipid transmitters, en...

Question 15

What are transmitter-activated receptors?

Accepted Answer

Transmitter-activated receptors, also kn...

Question 16

Electron microscopy is a useful tool in the study of synaptic morphology. The electron microscope allowed researchers to determine that:

Accepted Answer

A)  neurotransmitters are packaged into vesicles located at the end terminals of axons.
B)  neurotransmitters are located only in select hormones in the bloodstream.
C)  neurotransmitters are not chemicals, as had been previously thought.
D)  there are more than 1000 neurotransmitters in the human body.

Question 17

Which two enzymes are involved in the synthesis of acetylcholine from acetate and choline?

Accepted Answer

A)  acetyl coenzyme A (acetyl Co
A)   and choline acetyltransferase (ChAT) 
B)  acetylcholinesterase (ACh
E)   and acetyl coenzyme A (acetyl Co
A)  
C)  tyrosine hydroxylase and norepinephrine
D)  norepinephrine and dopamine

Question 18

Define habituation. What is the synaptic basis of the habituation response?

Accepted Answer

Habituation is a form of non-associative...

Question 19

_____ is the inactivation of a neurotransmitter by transporter proteins that bring the transmitter back into the presynaptic axon terminal for reuse.

Accepted Answer

A)  Diffusion
B)  Enzymatic degradation
C)  Reuptake
D)  Neurochemical recycling

Question 20

Which of the following is NOT part of the amine subtype of small-molecule neurotransmitters?

Accepted Answer

A)  dopamine
B)  glycine
C)  serotonin
D)  norepinephrine

Exam 5: How Do Neurons Communicate and Adapt

What are transmitter-activated receptors?

Correct AnswerAnswered by ExamLex AITransmitter-activated receptors, also kn...View AnswerShow Answer

_____ is the inactivation of a neurotransmitter by transporter proteins that bring the transmitter back into the presynaptic axon terminal for reuse.

Correct AnswerverifiedShow Answer

Define habituation. What is the synaptic basis of the habituation response?

Correct AnswerAnswered by ExamLex AIHabituation is a form of non-associative...View AnswerShow Answer

_____ is a neurotransmitter that is synthesized from tryptophan.

Correct AnswerverifiedShow Answer

_____ synapses are terminals that have no specific target.

Correct AnswerverifiedShow Answer

The opposite of habituation is:

Correct AnswerverifiedShow Answer

Which two enzymes are involved in the synthesis of acetylcholine from acetate and choline?

Correct AnswerverifiedShow Answer

Acetylcholine is the main neurotransmitter for:

Correct AnswerverifiedShow Answer

_____ is a standard treatment for patients with Parkinson disease.

Correct AnswerverifiedShow Answer

Which of the following is NOT part of the amine subtype of small-molecule neurotransmitters?

Correct AnswerverifiedShow Answer

Which of the following is a criterion for identifying a neurotransmitter?

Correct AnswerverifiedShow Answer

Electron microscopy is a useful tool in the study of synaptic morphology. The electron microscope allowed researchers to determine that:

Correct AnswerverifiedShow Answer

Which two neurotransmitters are synthesized from the same precursor molecule?

Correct AnswerverifiedShow Answer

A Renshaw loop consists of:

Correct AnswerverifiedShow Answer

Posttraumatic stress disorder (PTSD) has been linked with a(n) :

Correct AnswerverifiedShow Answer

A synaptic cleft is the space between:

Correct AnswerverifiedShow Answer

What is the predominant inhibitory neurotransmitter in the forebrain and cerebellum?

Correct AnswerverifiedShow Answer

What are the different ways in which a neurotransmitter could become deactivated?

Correct AnswerAnswered by ExamLex AINeurotransmitters are chemical messenger...View AnswerShow Answer

Compared with chemical synapses, electrical synapses:

Correct AnswerverifiedShow Answer

Describe the main class of lipid transmitters, endocannabinoids, and their effect on bodily processes.

Correct AnswerAnswered by ExamLex AIThe main class of lipid transmitters, en...View AnswerShow Answer

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Transmitter-activated receptors, also kn...
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Habituation is a form of non-associative...
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Neurotransmitters are chemical messenger...
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verified

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Answered by ExamLex AI
The main class of lipid transmitters, en...
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