The human heart is very important role of the human body.The heart is one of the most important organs in the entire human body. It is really nothing more than a pump, composed of muscle which pumps blood throughout the body, beating approximately 72 times per minute of our lives. The heart pumps the blood, which carries all the vital materials which help our bodies function and removes the waste products that we do not need.
The human heart pump blood & distributed of all parts of the body.The human heart is consist of four parts or chambers.The two auricles & the two ventricles.the auricles are called accepter & ventricles are called distributer.There are two veins to collect the deoxygenated blood to the heart.the two veins name is superior vena cava & the other name is inferior vena cava.the superior vena cava collect deoxygenated blood upper parts of the heart & inferior vena cava collect deoxygenated blood lower parts of the heart.
when superior vena cava & inferior vena cava collect deoxygenated blood to to heart & transfer to the right auricles.when heart pump the blood transfer to right auricle to right ventricles through tricuspid valve.when blood transfer to right ventricles then again the heart pump & deoxygenated blood transfer to the lungs through the pulmonary artery & then deoxygenated blood to the lungs & to foam a oxygenated blood & then transfer to the left auricle through pulmonary vein.
The oxygenated blood to the left auricle & again heart pump the oxygenated blood transfer to the left ventricles through mitral valve & again heart pump the oxygenated blood transfer to the aorta & again heart pump transfer oxygenated blood to all parts of the body.the veins is collected the deoxygenated blood to all parts of the body back to the heart with out pulmonary vein .& the artery is collected oxygenated blood to heart to all parts of the body with out pulmonary artery.
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