Process of purification

The pumping of blood in human body is done by the heart, the most precious part of human heart. After the blood passes through the right auricle and right ventricle, the blood enters into the lungs which is placed above the diaphragm where in the impurities in the blood are filtered and in case some clots are present in the blood are removed once for all in this process. After this stage the semi purified blood makes its way into the left auricle and left ventricle of the heart. Aorta is the largest blood vessel present in the human body and the blood enters into this.