ANATOMY

Detailed explanation-1: -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.

Detailed explanation-2: -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.

Detailed explanation-3: -The left atrium receives blood from the lungs. This blood is rich in oxygen. The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood.

Detailed explanation-4: -In the human heart, oxygenated blood flows through the right side and carbon dioxide-rich blood flows through the left side.

Detailed explanation-5: -After oxygenation, the oxygenated blood returns to the left atrium through the pulmonary vein which then further passes on to the left ventricle. Thus the right side of the heart carries deoxygenated blood and the left side of the heart carries oxygenated blood.