Term Name:	interventricular foramen of heart
Synonyms:	interventricular foramen, primary interventricular foramen
Definition:	A temporary opening between the developing ventricles of the heart. The ventricles arise as a single cavity is divided by the developing interventricular septum. Before the septum closes completely, the remaining opening between the two ventricles is termed the interventricular foramen.
Ontology:	Uberon Ontology [UBERON:0013152]