Jorge tried to pick up his sofa but discover that it is much heavier than he expected.What must occur in the muscle to increase tension so he can pick up this heavy piece of furniture?

Question

Quizplus · Accepted Answer

Recruitment of additional motor units is the process by which the brain increases the number of motor units it activates in a muscle in order to generate more force. When Jorge attempts to pick up the heavy sofa, his brain will recognize that the force being generated by his muscles is insufficient to lift the sofa and will recruit additional motor units to generate more force. This process will continue until the required force is generated, allowing Jorge to lift the sofa.

Jorge Tried to Pick Up His Sofa but Discover That