circular motion

The human heart is like a muscular bag that lets in impure blood through veins and lets out the pureblood through arteries. Veins carry impure blood but the arteries carry pure blood. Both veins and arteries are known as blood vessels. The blood carried by arteries is pure, red, and bright but the blood carried from the lungs to the heart is bright red and the pulmonary vein carries this blood. The blood, due to the presence of fibrinogen in blood plasma, has the capacity to clot. But for the clotting phenomenon of the blood, oozing from a cut or injury would never have stopped flowing. But, if the clot occurs/forms within the vessels, a serious heart complication, called ‘thrombosis’ may set in. If the same clot forms in the […]