MUSCLE PHYSIOLOGY

Detailed explanation-1: -If many stimuli are given repeatedly and rapidly to the muscle fibre, the result is an amplified, sustained contraction called as tetanus. When the strength of stimulation and the frequency is stronger and faster, the muscle tissue does not recover sufficiently between stimulations.

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: -tetanus: When the frequency of muscle contraction is such that the maximal force is tension is generated without any relaxation of the muscle. summation: The occurrence of additional twitch contractions before the previous twitch has completely relaxed.

Detailed explanation-4: -They are resistant to fatigue. They have a rapid onset of contractions. They cannot exhibit tetanus.