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: | A band |
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Synonyms: | A disc, anisotropic disc, Q disc, transverse disc |
Definition: | The dark-staining region of a sarcomere, in which myosin thick filaments are present; the center is traversed by the paler H zone, which in turn contains the M line. |
Ontology: | GO: Cellular Component [GO:0031672] QuickGO AmiGO |