👉 The term "ventricornu" is a medical term that refers to a small, fluid-filled cavity or space located between two major arteries in the heart. It's named after the ventricle, which is the muscular part of the heart that pumps blood throughout the body. In general, the ventricornu is a small and often hidden area that can be difficult to detect on an electrocardiogram (ECG) because it's located between two major arteries in the heart.