Final answer:
The main difference between the right and left heart is their function in the circulatory system. The right side pumps deoxygenated blood to the lungs, while the left side pumps oxygenated blood to the rest of the body.
Step-by-step explanation:
The main difference between the right and left heart is their function in the circulatory system. The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs for oxygenation, while the left side receives oxygenated blood from the lungs and pumps it to the rest of the body.
On the right side, the right atrium receives deoxygenated blood from the superior and inferior vena cava. This blood then passes to the right ventricle and is pumped to the lungs through the pulmonary arteries.
On the left side, the left atrium receives oxygen-rich blood from the lungs via the pulmonary veins. This blood then passes to the left ventricle and is pumped to the rest of the body through the aorta.