Clonus

Clonus is the name for involuntary rhythmic contractions of muscles or muscle groups. The term is from the Greek for "violent, confused motion".  Cloni can happen as a sign of certain neurological conditions, such as epilepsy, stroke, and multiple sclerosis. They can also be a sign that the spinal cord was damaged. Cloni can also occur as a reaction to certain drugs. 

Category:Medical signs
Category:Muscle tissue