Four Chambers of the Heart:

The human heart is a vital organ that pumps blood throughout the body. It consists of four chambers that are responsible for the efficient circulation of blood. These four chambers are:

1. Right Atrium:
The right atrium is the upper chamber of the heart that receives deoxygenated blood from the body through the superior and inferior vena cava. It contracts to push the blood into the right ventricle.

2. Right Ventricle:
The right ventricle is the lower chamber of the heart that receives deoxygenated blood from the right atrium. It pumps the blood into the pulmonary artery, where it is transported to the lungs for oxygenation.

3. Left Atrium:
The left atrium is the upper chamber of the heart that receives oxygenated blood from the lungs through the pulmonary veins. It contracts to push the blood into the left ventricle.

4. Left Ventricle:
The left ventricle is the lower chamber of the heart that receives oxygenated blood from the left atrium. It pumps the blood into the aorta, where it is transported to the rest of the body.

Each chamber of the heart is essential for the efficient circulation of blood throughout the body. The right atrium and right ventricle work together to pump deoxygenated blood to the lungs for oxygenation, while the left atrium and left ventricle work together to pump oxygenated blood to the rest of the body. The coordinated contraction and relaxation of these chambers ensure that blood flows in the correct direction and at the proper rate to meet the body's metabolic needs.

1.Left Auricle ,2.Right Auricle, 3.Left Ventricle, 4.Right Ventricle