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