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A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1] They can be benign, or associated with more serious conditions. [1]
The proportion of patients who benefited from anticholinergics ranged from 1 in 9 in Oregon [44] to 1 in 5 in England. [11] Besides failing to resolve the blepharospasm, some drugs present the risk of side effects. In Japan, use of etizolam and benzodiazepine was associated with the development of blepharospasm.
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus ( myo- "muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease .
Chinese traditions associate the right eye twitching and its spiritual significance depending on the time of day. For example, if it occurs during the morning hours, there is believed to be an ...
Toned abs — but in particular the infamous six-pack — are often seen as the Holy Grail of fitness. Experts say they're not only much harder to achieve than many people realize but some caution ...
The Chvostek sign is the abnormal twitching of muscles that are activated (innervated) by the facial nerve (also known as Cranial Nerve Seven, or CNVII). [1] When the facial nerve is tapped in front of the ear, the facial muscles on the same side of the face will contract sporadically (called ipsilateral facial spasm). The muscles that control ...
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Hemifacial spasm (HFS) is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions on one side (hemi-) of the face (-facial). [1] The facial muscles are controlled by the facial nerve (seventh cranial nerve), which originates at the brainstem and exits the skull below the ear where it separates into five main branches.