Twitch is the term for the contractile response of a single muscle fiber to a single muscle impulse.
Twitch is the sudden involuntary movement in the muscle. This happens when the muscle contract on their own. It is also called muscle fasciculation. There are several reason for twitch like: stress, too much caffeine, a poor diet, exercise, or even side effect of some medicines.
Muscles are the loose tissues in the body that mediate the movement of the body parts. They also provide support of the bones. There are three types of muscles in human body: skeletal, cardiac and smooth muscles.
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