<Tr> <Th> TA </Th> <Td> A12. 1.01. 005 </Td> </Tr> <Tr> <Th> FMA </Th> <Td> 9246 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> The fossa ovalis is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between right and left atrium . The fossa ovalis is the remnant of a thin fibrous sheet that covered the foramen ovale during fetal development . </P>

What is the fossa ovalis called in the fetal heart