Question

. Which structure in the heart ensures complete separation of oxygenated blood from deoxygenated blood?​

Answer 1

Answer:

The right atrium receives deoxygenated blood from systemic circulation and the left atrium receives oxygenated blood from pulmonary circulation. The atria do not have inlet valves, but are separated from the ventricles by valves.

Answer 2

ANSWER

The heart has four chambers two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle. The left ventricle pumps the oxygen-rich blood to the body. The one-way valves present in the heart prevents the backflow of blood, so, Oxyge rich and Carbon-dioxide rich blood can not be mixed.