Explain about the circulatory system in …

The circulatory is a complex process that occurs in multi cellular organisms like human being,animals etc... The oxygenated blood from lungs goes to the left atrium through the pulmonary vein.. The oxygenated blood goes from left atrium to the left ventricle through the valves present in our heart... Than the oxygenated blood goes from the left ventricle to the organs of our body through the main artery known as aorta. The oxygenated blood used in our body and the deoxygenated blood from organs of our body goes to the right atrium through the main vein known as vena cava. The deoxygenated blood from the right atrium goes to the left ventricle through the valves present in our heart.. Finally the deoxygenated blood from the left ventricle goes back to the lungs through the pulmonary artery.. Finally the deoxygenated blood is gone out from our body and again oxygenated blood comes and this process again occurs in our heart.. The heart is made up of special muscle known as cardic muscle.. Hope it's helpful for u ???