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