Oval Fossa

The fossa ovale is a depression in the interatrial septum that remains after the foramen ovale closes. This opening connects the right and left atria of the heart and allows blood to flow from one chamber to the other. The fossa ovalis can vary in depth and shape, but is usually oval or round in shape. It is located on the right side of the interatrial space.

The structure of the fossa ovale plays an important role in the normal functioning of the heart. It allows blood from the right atrium to be distributed evenly throughout the body through the pulmonary circulation. Once the foramen ovale closes, the fossa ovale becomes the last barrier to blood and it cannot flow back into the left atrium. If the fossa ovale becomes very narrow or completely closed, it can lead to the development of poor circulation and cause various types of heart diseases.

When the foramen ovale closes, the fossa ovalis becomes the end point of the return flow of blood between the left atrium and the right atrium. Its closure occurs when the oval hole is filled with connective tissue that grows from the inside. This occurs through a process of fibrous formation. In some cases, the fossa ovale may be incomplete, sometimes observed in children at an early age. If the foramen ovale is not completely closed, blood may return from the left atrium back to the right atrium. This can lead to the development of mild forms of heart failure. ABOUT