Ontologies
PATO
Phenotype And Trait Ontology (PATO)
OWL
Last submission date February 1, 2025
ID http://purl.obolibrary.org/obo/UBERON_0002329
http://purl.obolibrary.org/obo/UBERON_0002329
https://agroportal.lirmm.fr/ontologies/PATO/UBERON_0002329
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Preferred name

somite

Synonyms
mesodermal cluster epimere epimere mesoderm epithelial somite somitic mesoderm
Definitions
When the somite becomes segmented from the segmental plate, it is composed of an epithelial sac enclosing mesenchymal somitocoel cells. Thereafter the somite differentiates into two parts, the ventro-medial mesenchymal sclerotome and the dorso-lateral epithelial dermomyotome. This change in the epithelial somite depends on surrounding tissue [PMID:15906248] Somites are spheres of epithelial cells that form sequentially along the anterior-posterior axis of the embryo through mesenchymal to epithelial transition of the presomitic mesoderm.
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