An action potential results from _.
A) a change in the permeability of the neuron to K+ followed by a change in the permeability to Na+
B) a change in the permeability of the neuron to Na+ followed by a change in the permeability to K+
C) changes in the permeability of the neuron membrane to K+ alone
D) changes in the permeability of the neuron membrane to Na+ alone
Correct Answer:
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Q13: The expression "all-or-none" means that .
A) the
Q14: During depolarization, the membrane potential is .
A)
Q15: If a stimulus to a neuron is
Q16: When a neuron is in the resting
Q17: An action potential is .
A) a depolarization
Q19: When a neuron is at rest, there
Q20: During the time period immediately following an
Q21: In the experiment on stimulation of the
Q22: In the experiment on stimulation of the
Q23: Resting membrane potential is maintained by the
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