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| 1 | |
In which of the following phenomena are neurons involved? |
| | A) | The development of schizophrenia. |
| | B) | The development of depression. |
| | C) | The experience of emotion. |
| | D) | A, B, and C. |
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| 2 | |
Which of the following statements is true? |
| | A) | When a strong stimulus acts on a neuron, the action potential becomes larger than if the stimulus is weak. |
| | B) | When a strong stimulus acts on a neuron, the action potential travels more quickly than if the stimulus is weak. |
| | C) | When a strong stimulus acts on a neuron, action potentials occur more frequently than if the stimulus is weak. |
| | D) | A, B, and C. |
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| 3 | |
According to information in this interactivity, you would be correct to assume that as an action potential moves along an axon, the message it communicates is in _____ form. But once the message enters the synapse, it is in _____ form. |
| | A) | liquid; plasma |
| | B) | plasma; liquid |
| | C) | chemical; electrical |
| | D) | electrical; chemical |
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| 4 | |
When a neural signal is transmitted, it leaves the _____ of the first neuron and is received by the _____ of the second neuron. |
| | A) | axon; dendrites |
| | B) | dendrites; axo |
| | C) | glial cells; neurotransmitters |
| | D) | neurotransmitters; glial cells |
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| 5 | |
The speed at which an action potential moves along an axon depends in part on |
| | A) | the length of the dendrites. |
| | B) | the thickness of the myelin sheath. |
| | C) | how often the neuron fires. |
| | D) | the number of terminal buttons. |
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