Question 1

The drug __________ is a muscarinic antagonist and pupil dilator.

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Question 2

Drugs that increase the activity of a particular neurotransmitter are said to be __________ of that neurotransmitter.

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Question 3

Endorphins and __________ are endogenous opioids.

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Question 4

By binding to nicotinic receptors,__________ produces paralysis and death,which is why it is used on poison darts.

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Question 5

How are the membrane potentials of neurons recorded? Explain the ionic mechanisms thought to be responsible for the resting potential.

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Question 6

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

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Question 7

Describe the integration (summation)of postsynaptic potentials.Draw graphs illustrating the five basic types of summation.Discuss how these types of summation interact in a normal functioning neuron.

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Question 8

Explain how an action potential is conducted along a myelinated axon.Why is conduction more rapid in a myelinated axon than in an unmyelinated axon? At what speed does axonal conduction occur in various kinds of axons?

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Question 9

Use the accompanying figure to summarize how signals are conducted through and transmitted from a conventional multipolar neuron.To complement your summary,indicate on the illustration where various events occur.

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Question 10

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

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Question 11

Discuss three ways that drugs produce agonistic effects and three ways that they produce antagonistic effects.Provide specific examples.

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Question 12

Describe and explain how four ionic events contribute to the typical action potential-to help organize your answer label the four arrows in this illustration with the associated ionic event.

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Quiz 4: Neural Conduction and Synaptic Transmission