Which of the following would produce spatial summation?
A) Present two or more weak stimuli at the same time.
B) Start action potentials at both ends of one axon at the same time.
C) Do not allow a flexor muscle to relax before stimulating it again.
D) Present a rapid sequence of weak stimuli.

Question

Quizplus · Accepted Answer

Spatial summation occurs when multiple weak stimuli are presented at the same time and their effects add up to reach the threshold for an action potential. Option A describes this scenario. Options B and C are not related to spatial summation, and option D describes temporal summation, which occurs when a rapid sequence of stimuli is presented, not when multiple stimuli are presented at the same time.

Which of the Following Would Produce Spatial Summation