The back flow of blood during the pumping of blood by heart is prevented by: *
Answers
Answer:
Valves. Pls mark as branliest
Answer:
Valves in Heart prevent backflow of blood during the pumping of blood by the heart.
Explanation:
The valves of the heart are located within the chambers of the heart. It prevents the backflow of the blood. The opening and closing functions of the valves are controlled by pressure differences generated within the heart, as well as some muscles located within the heart.
The four heart valves:
The four heart valves all have a role in ensuring that the blood can only flow in one direction. The four heart valves are:
Tricuspid valve
The tricuspid valve is named because it has three flaps called cusps, or leaflets. Blood flows through this valve after leaving the right atrium. After passing through the tricuspid valve, blood flows to the right ventricle.
Pulmonic valve
The pulmonic, or pulmonary valve, is the next valve that deoxygenated blood flows through. It closes off the right ventricle and opens to allow the blood to flow to the lungs.
Mitral valve
The mitral valve closes off the left atrium, allowing oxygenated blood from the lungs to flow through to the left ventricle.
Aortic valve
The aortic valve is the final valve that oxygen-rich blood passes through before exiting the heart and coursing through the rest of the body. The valve prevents blood from flowing back to the left ventricle.