More motor units are needed to pick up a 20-pound weight than are needed to pick up a 5-pound weight.

Name: More motor units are needed to pick up a 20-pound weight than are needed to pick up a 5-pound weight.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

This is true because motor units are responsible for activating muscle fibers. In order to lift a heavier weight, more muscle fibers need to be activated, which requires a greater number of motor units.

More Motor Units Are Needed to Pick Up a 20-Pound