Name: | somite |
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Synonyms: | somitic mesoderm |
Definition: | Undifferentiated mesodermal components of early trunk or tail segments or metameres, derived from paraxial mesoderm; forms myotomes, sclerotomes and perhaps dermatomes. |
Ontology: | Anatomy Ontology [ZFA:0000155] |
Name: | myofibril |
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Synonyms: | |
Definition: | The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism. |
Ontology: | GO: Cellular Component [GO:0030016] QuickGO AmiGO |
Name: | absent |
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Synonyms: | absence, absent from organism |
Definition: | A quality denoting the lack of an entity. |
Ontology: | Phenotypic Quality Ontology [PATO:0000462] |