Multiple Choice
Which of these statements correctly describes twitch summation?
A) It is a means by which weak muscle contraction may be accomplished.
B) It results from increasing the number of motor units that are firing within a muscle.
C) A high level of calcium ion is not required in twitch summation.
D) It results from increasing the frequency at which motor units are firing within a muscle.
Correct Answer:
Verified
Correct Answer:
Verified
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