An action potential is .
A) a refractory period of the cell membrane
B) a depolarization of the cell membrane
C) a rapid depolarization and repolarization of the cell membrane that is propagated
D) a repolarization of the cell membrane
Correct Answer:
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Q9: What causes muscle contractions to be graded?
A)
Q10: The gradual activation of more and more
Q11: The stimulus from motor neuron to neuromuscular
Q12: During this period of muscle twitch, there
Q13: According to its definition, muscle fatigue is
Q15: An electromyogram is .
A) a graphic representation
Q16: An electromyogram measures .
A) electrical activity of
Q17: From your own experience, predict the relative
Q18: At this stimulus strength, all muscle cells
Q19: A motor unit is _ .
A) a
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