| Name: | horizontal myoseptum |
|---|---|
| Synonyms: | horizontal septum |
| Definition: | A connective tissue partition developing at the apex of the chevron-shaped myotome and separating dorsal (epaxial) and ventral (hypaxial) body wall muscle masses. |
| Ontology: | Anatomy Ontology [ZFA:0000671] |
| Name: | myoblast |
|---|---|
| Synonyms: | myoblasts |
| Definition: | An embryonic (precursor) cell of the myogenic lineage that develops from the mesoderm. They undergo proliferation, migrate to their various sites, and then differentiate into the appropriate form of myocytes. |
| Ontology: | Anatomy Ontology [ZFA:0009025] |