Synonym Discussion of foretell foretell, predict, forecast, prophesy, prognosticate mean to tell beforehand. foretell applies to the telling of the coming of a future event by any procedure or any source of information. seers foretold the calamity; predict commonly implies inference from facts or accepted laws of nature. astronomers predicted an eclipse
A motor unit is made up of a motor neuron and the skeletal muscle fibers innervated by that motor neuron's axonal terminals.roups of motor units often work together to coordinate the contractions of a single muscle; all of the motor units within a muscle are considered a motor pool. All muscle fibers in a motor unit are of the same fiber type.
Definition of Motor Unit. A motor unit consists of one somatic efferent (motor) neuron and all of the muscle fibers (cells) that it innervates. In the figure to the right, two motor units are illustrated diagrammatically. Notice that after an efferent axon enters the muscle, it branches and forms synapses with a number of muscle fibers.