Term: somite intersegmental vein
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
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: intersegmental vein
Synonyms: ISV
Definition: Veins that connect the posterior cardinal vein and the dorsal longitudinal anastomotic vessel. They run along the vertical myotomal boundaries. They form from primary intersegmental vessels that are contacted by secondary angiogenic sprouts from the posterior cardinal vein and take on the characteristics of veins. These eventually link with other secondary sprouts from the posterior cardinal vein to form the parachordal vessel.
Ontology: Anatomy Ontology [ZFA:0001057]