In the heart.
Interatrial septum
Fossa ovalis
The fossa ovalis is the thinnest part which used to be open in a fetus to bypass blood traveling to the lungs as they weren't breathing yet.
Lacrimal sac
Because the fetal lungs are inactive, the pulmonary circuit is bypassed. Half of the blood that enters the right atrium flows directly into the left atrium through the foramen ovale. The remainder flows from the right atrium to the right ventricle, then into the pulmonary trunk. The second bypass, the ductus arteriosus, transports the blood directly from the pulmonary artery into the aorta so it can be sent into systemic circulation.
the fossa ovalis was the foramen ovale and the ligamentum arteriosum was the ductus arteriosus. They each contributed to shunting blood away from the non-functional lungs in the fetus.
Ligamentum arteriosum and the fossa ovalis. That is to say the arterial ligament and the oval depression (found in the left ventricle).
The ligmentum arteriosum is the remnant of the ductus arteriosus in the fetal heart. The fossa ovalis is the remnant of the foramen ovale.
Fossa ovalis and ligamentum. Fossa ovalis -> foramen lovale Ligamentum-> Ductus arteriosus
The Foramen Ovale gives rise to the Fossa Ovalis. In most individuals, the foramen ovale closes at birth. It later forms the fossa ovalis.
In the fetal hear the fossa ovalis was known as the foramen ovale, which allows blood to pass from the right to the left atrium, thus bypassing the fetal lungs.
Interatrial septum
fossa ovalis
Right atrium and Left atrium
no, you misunderstood it, the right answer is FOSSA OVALIS, I HAD IT ON A TEST TODAY AND I GOT IT RIGHT
the right and left atrium of the fetal heart.
Fossa ovalis