Chapter 23. 23·4–23·7 How do neurons work?

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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 23·4–23·7 How do neurons work? by answering the following questions.

1.

1. Dendrites:

A.
B.
C.
D.
E.

Correct. (See section 23·4 Dendrites receive external stimuli.)
Incorrect. (See section 23·4 Dendrites receive external stimuli.)

2.

2. The disease multiple sclerosis (MS) is caused by:

A.
B.
C.
D.
E.

Correct. (See section 23·5 The action potential propagates a signal down the axon.)
Incorrect. (See section 23·5 The action potential propagates a signal down the axon.)

3.

3. In the nervous system, ____________________ is rich in neuronal cell bodies, and ____________________ contains axons.

A.
B.
C.
D.
E.

Correct. (See section 23·5 The action potential propagates a signal down the axon.)
Incorrect. (See section 23·5 The action potential propagates a signal down the axon.)

4.

4. Neurotransmitters in a synaptic cleft have all of the following possible fates except:

A.
B.
C.
D.
E.

Correct. (See section 23·6 At the synapse, neurons interact with other cells.)
Incorrect. (See section 23·6 At the synapse, neurons interact with other cells.)

5.

5. Which neurotransmitter is associated with the connection between a neuron and the muscle cell it stimulates?

A.
B.
C.
D.
E.

Correct. (See section 23·7 There are many types of neurotransmitters.)
Incorrect. (See section 23·7 There are many types of neurotransmitters.)

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