How many chambers are there in a human heart?

The human heart consists of four chambers, which include two atria and two ventricles. The right atrium and right ventricle are responsible for receiving deoxygenated blood from the body and pumping it to the lungs for oxygenation. The left atrium and left ventricle handle the oxygenated blood that returns from the lungs and pumps it out to the rest of the body. This four-chambered structure allows for efficient separation of oxygen-rich and oxygen-poor blood, which is essential for the circulatory system's function. The design of having four distinct chambers promotes effective circulation and ensures that the body's tissues receive the oxygen they need to function properly.