Cổng enter/ output: Là cổng cấp môi chất và cổng cho luồng môi chất đi ra khỏi bơmThe caval hiatus is found at the T8 vertebral level and makes it possible for the passage of your inferior vena cava as well as the terminal branches of the ideal phrenic nerve. This opening is essential for the return of venous blood to the cent