NEET BIOLOGY

Detailed explanation-1: -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. Blood travels through your heart and lungs in four steps: The right atrium receives oxygen-poor blood from the body and pumps it through the tricuspid valve to the right ventricle.

Detailed explanation-2: -The left ventricle (LV) pumps the oxygen-rich blood through the aortic valve (AoV) into the aorta (Ao), the main artery that takes oxygen-rich blood out to the rest of the body.

Detailed explanation-3: -The right side of the heart receives blood that is low in oxygen because most has been used up by the brain and body. It pumps this to your lungs, where it picks up a fresh supply of oxygen. The blood then returns to the left side of the heart, ready to be pumped back out to the brain and the rest of your body.

Detailed explanation-4: -The left atrium receives blood from the lungs. This blood is rich in oxygen.

Detailed explanation-5: -In the human heart, oxygenated blood flows through the right side and carbon dioxide rich blood flows through the left side.