A Motor Unit is Most Correctly Described as _____ and a Motor

Question

A motor unit is most correctly described as _____ and a motor neuron.
A)sarcomere(s)
B)myofibril(s)
C)muscle fiber(s)
D)filament(s)

Accepted Answer

A motor unit consists of a single motor neuron and all the muscle fibers it innervates. Therefore, a motor unit is not composed of sarcomeres, myofibrils or filaments, but rather muscle fibers.