Increased strength of a trained muscle is due to

A) an increased number of muscle fibers.
B) the nervous system's ability to recruit a large number of motor units simultaneously.
C) elimination of unnecessary enzymes and metabolic pathways.
D) elimination of all adipose tissue.
E) elimination of unnecessary connective tissue.

Motor Units

Refers to the combination of a motor neuron and the skeletal muscle fibers innervated by that motor neuron's axonal terminals.

Muscle Fibers

Long, slender cells that make up muscles, capable of contracting to produce movement in parts of the body.

Trained Muscle

Muscle that has undergone physiological changes due to exercise, enhancing its strength, endurance, or size.