Term Name:	fossa ovalis of heart
Synonyms:
Definition:	Found in the right atrium of the heart, the fossa ovalis is an embryonic remnant of the foramen ovale, which normally closes shortly after birth. In a heart specimen of a neonate, the fossa ovalis is translucent, but later in life the membrane thickens.
Ontology:	Uberon Ontology [UBERON:0003369]