Blood Expulsion Pressure

Blood ejection pressure is a phenomenon that occurs in the human body during contraction of the heart. Ejection pressure results from the heart pumping blood from one chamber to another, creating a pressure that can exceed ambient pressure. When the heart contracts, blood flows through the semilunar valves of the aorta (lower chamber of the heart) and pulmonary artery (upper chamber of the heart). These valves keep blood in the chambers of the heart during diastole (the relaxation phase of the heart). However, at a certain point, when the valves open, the blood pressure reaches a certain level called ejection pressure. The ejection pressure is about 80-120 mm Hg. Art.

Expulsion pressure is of great importance for the functioning of the body. This pressure is created when blood is forced from the heart through the semilunar valve into the aorta and lungs, and this force spreads throughout the body. This provides transfer