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Material
Chapter 01 vv
1. Dendrites contain the nuclei, ribosomes, mitochondria, and other structures found in most cells.
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a. True
b. False
ANSWER: False v v
2. Neurons receive information and transmit it to other cells.
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a. True
b. False
ANSWER: True v v
3. Santiago Ramón y Cajal used special staining techniques to reveal that the brain is composed of individual cells.
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a. True
b. False
ANSWER: True v v
4. An efferent axon carries information away from a structure.
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a. True
b. False
ANSWER: True v v
5. The greater the surface area of a dendrite, the more information it can receive from other neurons.
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a. True
b. False
ANSWER: True v v
6. Neurons are distinguished from other cells by their shape.
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a. True
b. False
ANSWER: True v v
7. The role of glial cells is to act like ―glue‖ or scaffolding to support the neurons.
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a. True
b. False
ANSWER: False v v
8. Glial cells transmit information across long distances.
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a. True
b. False
ANSWER: False v v
9. There are two types of glial cells that produce myelin sheath. In the central nervous system, Schwann cells fulfill
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this role and, in the periphery, oligodendrocytes produce it.
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BRILLIANT vvNURSE Page 1
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, Chapter 01 vv
a. True
b. False
ANSWER: False v v
10. The blood-brain barrier is made up of closely packed glial cells.
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a. True
b. False
ANSWER: False v v
11. The difference in voltage in a resting neuron is called the resting potential.
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a. True
b. False
ANSWER: True v v
12. Increasing the electrical gradient for potassium will reduce the tendency for potassium ions to exit the neuron.
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a. True
b. False
ANSWER: True v v
13. At the resting potential, the potassium channels are completely closed and the sodium channels are almost closed.
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a. True
b. False
ANSWER: False v v
14. Dr. Skinner is working in the lab measuring the voltage of neurons, and during one condition, she tried to
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depolarize the neurons from -70 mV to -80 mV.
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a. True
b. False
ANSWER: False v v
15. Action potentials can be produced in the dendrites of some neurons.
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a. True
b. False
ANSWER: False v v
16. The two basic kinds of cells in the nervous system are
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a. neurons and glia vv vv
b. dendrites and axons vv vv
c. ribosomes and lysosomes vv vv
d. neurons and axons vv vv
ANSWER: a v v
BRILLIANT vvNURSE Page 2
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