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Ontology Browser

Parent Terms Term With Siblings Child Terms
Hypertonia +   
Hypotonia +   
Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.

Exact Synonyms: Low muscle tone ;   Low or weak muscle tone ;   Muscle hypotonia ;   Muscular hypotonia
Narrow Synonyms: Central hypotonia ;   Peripheral hypotonia
Alternate IDs: HP:0011398
Xrefs: MSH:D009123 ;   SNOMEDCT_US:398151007 ;   SNOMEDCT_US:398152000 ;   UMLS:C0026827
Definition Sources: HPO:probinson, PMID:21418198

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