A motor neuron and the muscle fibers it controls constitute a __________, which contains _________ muscle fibers where precise muscle control is required.
A)motor fascicle; very few
B)muscle; many
C)motor unit; very few
D)motor unit; many

Question

Quizplus · Accepted Answer

A motor unit consists of a motor neuron and the muscle fibers it controls. In areas requiring precise control, a motor unit will control very few muscle fibers for finer movement precision.

A Motor Neuron and the Muscle Fibers It Controls Constitute