athetosis

athetosis /ath·e·to·sis/ (ath″ĕ-to´sis) repetitive involuntary, slow, sinuous, writhing movements, especially severe in the hands.

Positions of fingers in movements of athetosis.

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ath·e·to·sis (th-tss)

n.

A constant succession of slow, writhing, involuntary movements of flexion, extension, pronation, and supination of fingers and hands, and sometimes of toes and feet.

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athe·toid, athe·tosic, athe·totic (-ttk) adj.

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Athetosis

A condition marked by slow, writhing, involuntary muscle movements.

Mentioned in: Cerebral Palsy, Lesch-Nyhan Syndrome

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athetosis

[ath′ətō′sis]

Etymology: Gk, athetos, not fixed

slow, writhing, continuous, and involuntary movement of the extremities, as seen in some forms of cerebral palsy and in motor disorders resulting from lesions in the basal ganglia, tabes dorsalis, or other conditions.

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athetosis [ath″ĕ-to´sis]

repetitive involuntary, slow, sinuous, writhing movements.

 Positions of fingers in movements of athetosis. From Dorland's, 2000.

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athetosis (ath´tō´sis),

n a neuromuscular impairment in which extensive twisting and swaying spasms of the skeletal musculature interfere with voluntary control of movement; the spasms are especially conspicuous and disconcerting during emotional stress and on initiation of conscious voluntary acts.

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athetosis

repetitive involuntary, slow, sinuous, writhing movements. Seen in primates, but not a feature of neurological disorders in domestic animals.

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athetosis

Mobile spasm Neurology Constant, slow involuntary writhing movements, most severe in hands; A CNS disorder characterized by continual uncoordinated movements of the limbs