What is the function of the left side of the heart?

The function of the left side of the heart is to transport oxygenated blood from the lungs to the body. This is a vital role in the circulatory system. After the blood becomes oxygen-rich in the lungs, it returns to the left side of the heart through the pulmonary veins. From there, the left atrium moves the blood into the left ventricle, which then pumps it out through the aorta to supply oxygen and nutrients to all the tissues and organs in the body.

This process is essential for maintaining the health of body cells, as oxygen is required for cellular respiration, the process by which cells produce energy. The efficient functioning of the left side of the heart is critical for sustaining life, as it ensures that all parts of the body receive the essential oxygen and nutrients they need to function properly.