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the part of the blood that closes a wound is called the platelets.
The heart valves open when blood is flowing through. They close to prevent backflow.
The heart valves keep blood from flowing backward. This increases the efficiency of the pumping of the heart.
Platelets
Platlets Plasma
you should probely go to the docter imeaditly if blood isn't flowing in one part of the body because then you may need to get surgerey
The part of the heart that opens when blood flows though is called the valve. There are four valves in the heart, two atrioventricular valves and two semilunar valves.
valves
Red Blood Cells
platelets and thrombocytes
Platelet cells are the component within blood cells that help control bleeding by helping blood to clot.
The mitral valve, also called the AV valve, closes during ventricular systole, which is one of the part of the cardiac cycle. When the atria contracts (atrial systole), the ventricules fill with blood, causing the mitral valve to close in order to avoid the blood from flowing back into the atrium. Hope it helps!!