spasm
Spasm of muscle
There is spasm of the muscles due to increased tone.
-spasm means involuntary muscle contraction, so blepharospasm, for instance, is involuntary contraction of the eyelid.
cardiac and smooth
It would just be a small muscle spasm.
carpopedal spasm are spasm of the hand or foot, or of the thumbs and great toes.
Spasm - album - was created in 1993.
Cytoplasm rhymes with spasm.
My hand just had a spasm!
Antonyms of spasm would be calm, relaxed, still.
As he fell, he could feel a spasm in his back.