MUSCLE PHYSIOLOGY

Detailed explanation-1: -Tetanus is an infection caused by bacteria called Clostridium tetani . When these bacteria enter the body, they produce a toxin that causes painful muscle contractions. Another name for tetanus is “lockjaw”.

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: -Definition. A single uterine contraction lasting greater than 2 minutes. [ from NCI]

Detailed explanation-4: -Tetanus is the fusion of contractions to produce a continuous contraction.

Detailed explanation-5: -Motor Function A single pulse applied to muscle tissue will result in a single contraction or twitch. As pulse frequency increases the twitches become more frequent until they merge into a sustained contraction known as tetanic contraction or spasm. This may occur at a frequency of about 10 Hz.