loading...| Preferred Name |
Clonus |
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| Synonyms |
Involuntary rhythmic muscular contractions and relaxations |
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| Definitions |
Clonus is a manifestation of spasticity that can occur with lesions of the corticospinal tract. Only sustained clonus (5 beats or more) is considered abnormal. A series of rhythmic and involuntary muscle contractions (at a frequency of about 5 to 7 Hz) that occur in response to an abruptly applied and sustained stretch. |
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| ID |
http://purl.obolibrary.org/obo/HP_0002169 |
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| comment |
Clonus is a manifestation of spasticity that can occur with lesions of the corticospinal tract. Only sustained clonus (5 beats or more) is considered abnormal. |
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| database_cross_reference |
UMLS:C0009024 SNOMEDCT_US:36649002 |
|
| definition |
A series of rhythmic and involuntary muscle contractions (at a frequency of about 5 to 7 Hz) that occur in response to an abruptly applied and sustained stretch. |
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| has exact synonym |
Involuntary rhythmic muscular contractions and relaxations |
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| id |
HP:0002169 |
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| label |
Clonus |
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| notation |
HP:0002169 |
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| prefLabel |
Clonus |
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| subClassOf |
http://purl.obolibrary.org/obo/HP_0011442 |