A single motor neuron together with all the skeletal muscle fibers it innervates is called a:

Question

Quizplus · Accepted Answer

The term "motor unit" refers to a single motor neuron and all the skeletal muscle fibers that it innervates. This is the smallest functional unit of muscle contraction. The other options are not correct: the synaptic cleft refers to the tiny gap separating the presynaptic neuron from the postsynaptic cell; the neuromuscular junction is the specialized synapse between a motor neuron and a muscle fiber; and the motor end plate is the highly folded region of the sarcolemma at the neuromuscular junction that contains acetylcholine receptors.

A Single Motor Neuron Together with All the Skeletal Muscle