EVERYDAY SCIENCE

Detailed explanation-1: -The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.

Detailed explanation-2: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Detailed explanation-3: -The left atrium and the left ventricle are the chambers of the heart which receive oxygen rich blood from the lungs. Therefore, these two chambers contain the blood with highest amount of oxygen concentration.

Detailed explanation-4: -The heart pumps deoxygenated blood from the right ventricle to the lungs and at the same time pumps oxygenated blood from the left ventricle into the aorta.

Detailed explanation-5: -The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where the blood picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.