You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In the adult hea, floor of fossa ovalis represents: and explain in detail?
Ans. B: Septum primumFossa ovalis and anulus ovalis lie on the atrial septum, which separates the right atrium from the left atrium.The fossa ovalis is a shallow depression, which is the site of the foramen ovale in the fetus.The anulus ovalis forms the upper margin of the fossa.The floor of the fossa represents the persistent septum primum of the hea of the embryo, and the anulus is formed from the lower edge of the septum secundum