Valvula foraminis ovalis is a Latin term commonly used in anatomy and physiology to describe a specific anatomical structure located within the human heart. The term can be translated to English as "valve of the oval opening."
The valvula foraminis ovalis, also known as the valve of the foramen ovale, refers to a small flap-like structure found in the interatrial septum of the heart. The interatrial septum is the wall that separates the left and right atria, the upper chambers of the heart. The valve is positioned within a fetal remnant called the foramen ovale, which is an opening connecting the two atria during prenatal development.
During fetal development, blood bypasses the lungs since oxygen exchange is facilitated through the placenta. The valvula foraminis ovalis plays a crucial role by allowing oxygenated blood coming from the placenta to pass directly from the right atrium to the left atrium, avoiding the pulmonary circulation. However, at birth, when the lungs become functional, the pressure in the left atrium increases, causing the valve to close and effectively sealing off the foramen ovale.
In some individuals, the valve may not completely close after birth, resulting in a condition known as patent foramen ovale (PFO). This can allow small amounts of blood to flow from the right atrium to the left atrium, potentially leading to certain cardiovascular complications. In such cases, medical interventions may be required to address the condition.
In summary, valvula foraminis ovalis is a heart valve that plays a crucial role during fetal development, facilitating the circulation of oxygenated blood.
