Tetanus, TEHT uh nuhs, is a serious disease that affects muscles. It is also called lockjaw because severe spasms (violent muscle contractions) of the jaw muscles make it hard for victims to open their mouths.
Tetanus, TEHT uh nuhs, is a serious disease that affects muscles. It is also called lockjaw because severe spasms (violent muscle contractions) of the jaw muscles make it hard for victims to open their mouths.