What causes muscle contractions to be graded?
A) increasing stimulus frequency
B) both increasing stimulus strength and increasing stimulus frequency
C) increasing stimulus strength
Correct Answer:
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Q4: The rising phase of a muscle twitch
Q5: Graded muscle contractions .
A) depend on increasing
Q6: During an action potential in muscle, .
A)
Q7: A muscle twitch is _.
A) a twinge
Q8: When muscle is stimulated directly to contract,
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
Q14: An action potential is .
A) a refractory
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