Involuntary contraction of the muscle fibers innervated by a motor unit. Fasciculations may be visualized as a muscle twitch or dimpling under the skin, but usually do not generate sufficient force to move a limb. They may represent a benign condition or occur as a manifestation of MOTOR NEURON DISEASE or PERIPHERAL NERVOUS SYSTEM DISEASES. (Adams et al., Principles of Neurology, 6th ed, p1294)

Annotation

note category: do not confuse with AXON FASCICULATION

DUI

D005207 MeSH Browser

CUI

M0008236

History note

1987(1979)

Public note

1987; see NEUROLOGIC MANIFESTATIONS 1982-86, see MOVEMENT DISORDERS 1979-81