A subject,with eyes closed,repeatedly contracts a muscle until fatigue occurs.When the eyes are opened,the muscle's ability to produce force is improved.This experiment is a demonstration of fatigue being linked to which of the following sites?
A)muscle
B)central nervous system
C)mitochondria
D)peripheral nervous system

Question

Quizplus · Accepted Answer

This experiment is demonstrating central fatigue, which occurs when the central nervous system becomes fatigued and sends weaker signals to the muscles, resulting in decreased muscle force production.

A Subject,with Eyes Closed,repeatedly Contracts a Muscle Until Fatigue Occurs