Term: somite anatomical boundary
Name: somite
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: anatomical boundary
Synonyms:
Definition: A non-material anatomical entity of two dimensions. Anatomical boundaries are contiguous structures.
Ontology: Spatial Ontology [CARO:0000010]