Which of these statements describes the summation of simple twitches

Question

Quizplus · Accepted Answer

Summation of simple twitches occurs when consecutive action potentials arrive at a muscle fibre before the previous twitch has fully relaxed. This leads to an increase in tension generated by the muscle fibre as the twitches add together. Therefore, summation of simple twitches results from the accumulation of action potentials, not from the other factors listed in the answer choices.

Which of These Statements Describes the Summation of Simple Twitches