Relationship between directional blood flow and four valves

According to the inquiry, riel Anxin. Com display.

1, mitral valve, the role of the mitral valve is to ensure that blood enters the left ventricle from the left atrium. Blood from the atrium flows into the ventricle. When the atrium contracts, the valve opens, and when the ventricle relaxes, the pressure decreases. Blood from the atrium can flow into the ventricle through the open mitral valve.

2, tricuspid valve, the role of tricuspid valve is to ensure that blood flows from the right atrium to the right ventricle. Tricuspid valve is similar to mitral valve, which ensures that atrial blood enters the ventricle smoothly.

3, aortic valve, the role of aortic valve is to ensure that blood is injected into the aorta from the left ventricle. When the heart contracts, the aortic valve opens, thus injecting blood into limbs, heart, kidneys and other organs. When the heart relaxes, it shuts down to prevent blood from flowing into the left ventricle.

4, pulmonary valve, the role of the pulmonary valve is to ensure that blood is injected from the right ventricle to the pulmonary artery. The pulmonary valve is to ensure that there is no blood backflow.