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clonus
clo·nus C0415000 (klō′nəs)n. pl. clo·nus·es An abnormality in neuromuscular activity characterized by rapidly alternating muscular contraction and relaxation.
[New Latin, from Greek klonos, turmoil.]
clon′ic (klŏn′ĭk, klō′nĭk) adj.clo·nic′i·ty (klō-nĭs′ĭ-tē, klŏ-), clo′nism (klō′nĭz′əm, klŏn′ĭz′əm) n.clonus (ˈkləʊnəs) n (Pathology) a type of convulsion characterized by rapid contraction and relaxation of a muscle[C19: from New Latin, from Greek klonos turmoil] clonic adj clonicity nclo•nus (ˈkloʊ nəs)
n., pl. -nus•es. a rapid succession of flexions and extensions of a muscle group during movement, often symptomatic of a nervous system disorder. [1810–20; < New Latin < Greek klónos turmoil] clon•ic (ˈklɒn ɪk) adj. clo•nic•i•ty (kloʊˈnɪs ɪ ti, klɒ-) n. Thesaurus| Noun | 1. | clonus - convulsion characterized by alternating contractions and relaxationsconvulsion - violent uncontrollable contractions of muscles |
TranslationsClonus
clonus[′klō·nəs] (physiology) Irregular, alternating muscular contractions and relaxations. Clonus rhythmic contractions, in rapid succession, of single muscles or muscle groups. Clonus may be either spontaneous or provoked by external stimulation. clonus
clonus [klo´nus] 1. alternate involuntary muscular contraction and relaxation in rapid succession.2. a continuous rhythmic reflex tremor initiated by the spinal cord below an area of spinal cord injury, set in motion by reflex testing.ankle clonus (foot clonus) a series of abnormal reflex movements of the foot, induced by sudden dorsiflexion, causing alternate contraction and relaxation of the triceps surae muscle.toe clonus abnormal rhythmic contraction of the great toe, induced by sudden passive extension of its first phalanx.wrist clonus spasmodic contraction of the hand muscles, induced by forcibly extending the hand at the wrist.clo·nus (klō'nŭs), A form of movement marked by contractions and relaxations of a muscle, occurring in rapid succession seen with, among other conditions, spasticity and some seizure disorders.
See also: contraction. [G. klonos, a tumult] clonus (klō′nəs)n. pl. clo·nuses An abnormality in neuromuscular activity characterized by rapidly alternating muscular contraction and relaxation.
clon′ic (klŏn′ĭk, klō′nĭk) adj.clo·nic′i·ty (klō-nĭs′ĭ-tē, klŏ-), clo′nism (klō′nĭz′əm, klŏn′ĭz′əm) n.clonus Neurology 1. A volley of muscle contractions and relaxations, occurring in rapid succession.2. An abrupt transient muscle contraction.clo·nus (klō'nŭs) A form of movement marked by contractions and relaxations of a muscle, occurring in rapid succession; seen with, among other conditions, spasticity, and some seizure disorders.
See also: contraction
Synonym(s): clonospasm. [G. klonos, a tumult]clonus Repetitive contraction and relaxation of stretched muscles which have been deprived of the smoothing and controlling influence of higher centres in the nervous system, in conditions such as STROKE. A feature of an ‘upper motor neurone lesion’. Clonus is also a feature of GRAND MAL epilepsy.clo·nus (klō'nŭs) A form of movement marked by contractions and relaxations of a muscle, occurring in rapid succession seen with, among other conditions, spasticity and some seizure disorders. [G. klonos, a tumult]clonus
Related to clonus: ankle clonusWords related to clonusnoun convulsion characterized by alternating contractions and relaxationsRelated Words |