GENERAL HISTOLOGY

Detailed explanation-1: -A motor neuron and all the myocytes (muscle cells) that it stimulates are called a motor unit, not a motor end plate. A motor end plate also called a neuromuscular junction, is a chemical synapse formed between the terminal branches of the motor neuron’s axon and a target muscle cell.

Detailed explanation-2: -A tetanic contraction (also called tetanized state, tetanus, or physiologic tetanus, the latter to differentiate from the disease called tetanus) is a sustained muscle contraction evoked when the motor nerve that innervates a skeletal muscle emits action potentials at a very high rate.

Detailed explanation-3: -Each skeletal muscle fiber has one neuromuscular junction. A motor unit consists of a neuron plus the muscle fibers it supplies. There are many motor units in a nerve that collectively provide electrical input to a muscle to generate a muscle contraction.