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