What is fasciculation?

Fasciculation are:

  • - 1. The formation of small bundles of fibers
  • - 2. Involuntary contraction or twitching of a group of muscle fibers; a coarser form of muscular contraction than fibrillation.

A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. They are common, with as many as 70% of people experiencing them. They can be benign, or associated with more serious…

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