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Exam 4: The Nervous System

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Question 21

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Describe the structure of a neuron.

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Neurons have four regions: cell body - c...

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Question 22

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The neurotransmitter at the end organ of the sympathetic branch of the autonomic nervous system is

A) serotonin.
B) dopamine.
C) norepinephrine.
D) GABA.

E) B) and C)
F) A) and D)

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Question 23

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In addition to neurons,the brain contains an even larger number of another cell type known as

Which of the following neurotransmitters is found in most parts of the brain and is considered inhibitory?

within certain limits is called

What are the steps involved in the life cycle of a neurotransmitter?

Parkinson's disease produces tremors and muscular rigidity because of damage to

Describe the differing effects of the sympathetic and parasympathetic branches of the autonomic nervous system.

Newer local anesthetics are simple modifications of the cocaine molecule that do not pass the blood-brain barrier and thus do not produce cocaine-like feelings of euphoria.

Whether the effect of a neurotransmitter is excitatory or inhibitory depends on

Specialized structures that recognize neurotransmitter molecules and,when activated,may cause a change in the electrical activity of the neuron,are called

MRI and PET are two types of neurotransmitter chemicals.

Which chemical pathway appears to be important both in some types of psychotic behavior and in the reinforcing properties of various drugs?

Natural chemicals in the brain that produce effects similar to those of morphine and other opium-derived drugs are called