Which is the correct answer? Transcribed Image Text: Which statement about muscle contractions is INCORRECT? Once maximum muscle tension is achieved, no ATP is required to maintain that level of

Which is the correct answer? Transcribed Image Text: Which statement about muscle contractions is INCORRECT?
Once maximum muscle tension is achieved, no ATP is required to maintain that level of
tension.
A single action potential at the neuromuscular junction is sufficient to cause a muscle
to twitch.
O An action potential in the muscle cell activates contraction by releasing [Ca2+] within
the muscle cell.
Summation of twitches leads to a graded increase in the tension that can be generated
by a single muscle fiber.

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