A motor neuron and all the muscles under its control are collectively known as a(n) ____ unit.
A)end
B)movement
C)muscle
D)motor
E)coordination

Question

Quizplus · Accepted Answer

A motor neuron is responsible for transmitting signals to muscle fibers, which causes them to contract. The motor neuron and all the muscle fibers it controls is known as a motor unit. Therefore, choice D, motor, is the correct answer.

A Motor Neuron and All the Muscles Under Its Control