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Multiple Choice Quiz
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1
The protective fatty coating(s) that encase(s) the axon and increase(s) the speed of the electrical signal as it travels within a neuron is (are) the
A)myelin sheath.
B)terminal buttons.
C)cell body.
D)synapse.
2
Which of the following is true about the action potential?
A)Its speed is determined by the number of terminal buttons receiving the signal.
B)It is an all-or-nothing response determined by the strength of the signal.
C)It can be slowed down when specific neurotransmitters are released.
D)It becomes larger as the signal strength becomes stronger.
3
The _____________ send(s) messages to other neurons.
A)dendrites
B)terminal buttons
C)myelin sheath
D)cell body
4
_____________ are the fibers that receive signals from other neurons.
A)Terminal buttons
B)Neurotransmitters
C)Axons
D)Dendrites
5
Dendrites receive stimulus input from
A)other neurons.
B)the outside world.
C)Both a and b
D)Neither a nor b
6
When the action potential reaches the end of the axon, neurotransmitters are released directly into the _____________
A)dendrites of the receiving neuron.
B)synapse between two neurons.
C)cell body of the receiving neuron.
D)axons of the receiving neuron.







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