Multiple Choice
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:
Verified
Correct Answer:
Verified
Q12: The gradual activation of more and more
Q13: The rising phase of a muscle twitch
Q14: An electromyogram is .<br>A) a graphic representation
Q15: An electromyogram measures .<br>A) electrical activity of
Q16: When muscle is stimulated directly to contract,
Q18: Most subjects use their dominant forearm far
Q19: Graded muscle contractions .<br>A) depend on increasing
Q20: What causes muscle contractions to be graded?<br>A)
Q21: During an action potential in muscle, .<br>A)
Q22: Your friend has a paralyzed arm. What