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. [ http://en.wikipedia.org/wiki/Primary_interventricular_foramen ]

This is just here as a test because I lose it

Term information


Phenotype notes: In some individuals, the foramen fails to close, leading to an interventricular septal defect known as a patent interventricular foramen

has related synonym

primary interventricular foramen

interventricular foramen