loading...| Preferred Name |
Myoclonus |
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| Synonyms |
myoclonic jerk myoclonic contraction Myoclonic jerks Jerking Involuntary jerking movements |
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| Definitions |
Myoclonus may be synchronous (several muscle contracting simultaneously), spreading (several muscles contracting in sequence), or asynchronous (several muscles contracting with varying and unpredictable relative timing). Myoclonus is characterized by sudden unidirectional movement due to muscle contraction (positive myoclonus) or due to sudden brief muscle relaxation (negative myoclonus). Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements. |
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| ID |
http://purl.obolibrary.org/obo/HP_0001336 |
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| comment |
Myoclonus may be synchronous (several muscle contracting simultaneously), spreading (several muscles contracting in sequence), or asynchronous (several muscles contracting with varying and unpredictable relative timing). Myoclonus is characterized by sudden unidirectional movement due to muscle contraction (positive myoclonus) or due to sudden brief muscle relaxation (negative myoclonus). |
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| database_cross_reference |
UMLS:C0027066 SNOMEDCT_US:127324008 MSH:D009207 UMLS:C1854302 SNOMEDCT_US:17450006 |
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| fromESSO |
true |
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| has exact synonym |
myoclonic jerk myoclonic contraction Myoclonic jerks |
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| has_alternative_id |
HP:0002535 HP:0007087 |
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| has_broad_synonym |
Jerking |
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| has_obo_namespace |
human_phenotype |
|
| id |
HP:0001336 |
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| imported from | ||
| label |
Myoclonus |
|
| notation |
HP:0001336 |
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| oboInOwl:hasRelatedSynonym |
Involuntary jerking movements |
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| prefLabel |
Myoclonus |
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| 文本定义 |
Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements. |
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| subClassOf |