出典:Wiktionary
出典:『Wiktionary』 (2026/04/06 02:08 UTC 版)
fasciculation (countable and uncountable, plural fasciculations)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/05 13:51 UTC 版)
A fasciculation /fəˌsɪkjʉˈleɪʃən/, or "muscle twitch", is a small, local, involuntary muscle contraction and relaxation visible under the skin arising from the spontaneous discharge of a bundle of skeletal muscle fibers (muscle fascicle). Fasciculations have a variety of causes, the majority of which are benign, but can also be due to disease of the motor neurons.
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