Question 1

2-________ receptors involve the direct opening of an ion channel, whereas metabotropic
receptors involve the action of second messenger molecules inside the postsynaptic cell.

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Question 2

What property of the neuron membrane produces the "all-or-none" law?

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Question 3

Explain how changes in ion movements can result in an action potential.

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Question 4

Explain why the termination step of the neural communication process is a key target for therapeutic drugs.

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Question 5

2- A large, dense-core vesicle is most likely to contain a ________.

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Question 6

Compare and contrast the general functions of the three glial cell types in the brain.

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Question 7

2- The effects of acetylcholine are prolonged by drugs that inactivate the enzyme ________.

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Question 8

2- The term ________ is derived from the word meaning "little bladder."

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Question 9

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

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Question 10

Explain what is meant by decremental conduction.

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Question 11

Explain how the presence of myelin on an axon speeds up conduction velocity.

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Question 12

2-________ speeds up the velocity at which an axon can conduct an action potential.

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Question 13

2- A ________ myelinated fiber will conduct action potentials more rapidly than will a thin myelinated fiber.

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Question 14

________ are metabotropic receptors located in the presynaptic membrane that provide negative feedback onto transmitter release.

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Question 15

Contrast ionotropic and metabotropic receptors.

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Question 16

3- Describe the organelles that comprise the neuron soma.

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Quiz 2: Structure and Function of Cells of the Nervous System

2-________ receptors involve the direct opening of an ion channel, whereas metabotropic receptors involve the action of second messenger molecules inside the postsynaptic cell.