The human heart is [[1]] chambered.

The human heart is a muscular organ that pumps blood throughout the body. It is divided into four chambers, two upper chambers called atria or auricles, and two lower chambers called ventricles. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle, which then pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and pumps it into the left ventricle, which then pumps it to the rest of the body. The four chambers are separated by valves that ensure that blood flows in the correct direction.