Question

whether or not a motor unit activates upon the arrival of an impulse depends on the principle
question 55
each muscle fiber is activated through impulses delivered via its motor end plate.
true
false
question 56
the capacity to activate muscle fibers simultaneously is known as

Explanation:

1. For the statement about muscle - fiber activation through impulses via motor end - plate, it is a fundamental fact in muscle physiology. Nerve impulses are transmitted to muscle fibers at the motor end - plate, causing activation.
2. The capacity to activate muscle fibers simultaneously is known as motor unit recruitment. Motor unit recruitment is the process by which different motor units are activated to produce a desired level and type of muscle contraction.

Answer:

Question 55: True
Question 56: Motor unit recruitment