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twitch(twich) a brief, contractile response of a skeletal muscle elicited by a single maximal volley of impulses in the neurons supplying it.
twitchBody twitch Sleep disorders A small body movement–eg, a facial grimace or finger jerk, not usually associated with arousal. See REM twitch.
twitchA brief muscular contraction resulting from a sudden spontaneous impulse in a nerve supplying a group of muscle fibres. Twitching is common and is seldom of any medical significance.
twitchmomentary contraction of muscle fibre
2. a short, sudden pull or jerk.
Patient discussion about twitch
Q. What causes twitching I deal with insomnia,and sometimes i sleep very sound. What causes the twitching during sleeping.Went to bed at 10 pm, and 2 30 this morning my boyfriend was woke up by me twitching. What is the cause of this. I also drink alot of coffee, could that be a factor with it.
Q. my sons arm started twitching in the mornings. is that normal? it's scary, not every morning, but once in a while (twice a week maybe more) he's right arm just twitches without control for 2-3 minutes. can i stop it? should i try to restrain him? does any one know this situation?
Q. eyelids what causes your eye lids too twitch? my left eye lid has been twitching on and off for about a week what causes it and how can i get it to stop.