Question

multiple choice question
as the intensity of nervous stimulation increases, more and more motor units are activated. this is known as:
o retention
o summation
o recruitment

Explanation:

In the context of muscle - nerve function, when the intensity of nervous stimulation increases and more motor units are activated, this is called recruitment. Retention is related to memory and not relevant here. Summation refers to the addition of muscle contractions in a different context (temporal or spatial summation of muscle twitches), not the activation of more motor units with increased stimulation intensity.

Answer:

C. recruitment