Question

any body can say the explain the heart work

Answer 1

hard work is very conscious in a body the main part of our body is MRI brain and heart heart provide supply of the blood and make the blood pure which is the price in our body the oxygen concluded blood is transported to all body and the carbon dioxide concluded blood is exist or exit from our body

Answer 2

the main part of our body is the heart, due to this the flow of blood takes place in our body.
when muscles of all the four Chambers of the heart are relaxed the pulmonary veins bring the oxygenated blood from the lungs to the heart. when the left Atrium contracts deoxygenated blood is pushed into the left ventricle through the valve .when the left ventricle contracts deoxygenated blood is force into the main artery called the author which carries the blood to body parts .when the right Atrium is in relax condition main vein or Vena cava carries deoxygenated blood from body parts into the right Atrium .when the right Atrium contracts deoxygenated blood is pushed into the right ventricle Through Valve .when the right ventricle contracts the deoxygenated blood is pushed into the lungs .this process is repeated again and again to keep blood circulating in our body and this all is known as double circulatory system