| Term Name: | somite 21 |
|---|---|
| Synonyms: | |
| Definition: | Undifferentiated mesodermal component of early tail 21 segment or metamere, derived from paraxial mesoderm; forms the myotome, sclerotome and perhaps dermatome. |
| Appears at: | Segmentation:20-25 somites (19.0h-22.0h) |
| Evident until: | Hatching:Pec-fin (60.0h-72.0h) |
| Ontology: | Anatomy Ontology [ZFA:0000854] |
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