Select the correct statement about the summation of simple twitches.

Question

Quizplus · Accepted Answer

The summation of simple twitches refers to the addition of twitches caused by action potentials that occur close together in time, leading to a greater contraction force in the muscle fiber. It is related to the refractory periods of action potentials, in that if a new action potential occurs before the previous one has fully resolved, the twitches will summate. Choice A is incorrect, as the duration of the action potential does not directly affect summation. Choice B is incorrect, as summation leads to increased tension, not reduced tension. Choice C is incorrect, as slower stimulation would lead to less summation. Choice D is incorrect, as it is directly related to the refractory periods of action potentials.

Select the Correct Statement About the Summation of Simple Twitches