Which part of the heart is responsible for pumping oxygenated blood to the body?

The left ventricle is responsible for pumping oxygenated blood to the body. This chamber receives oxygen-rich blood from the left atrium, which comes from the lungs via the pulmonary veins. Once the left ventricle fills with this oxygenated blood, it contracts forcefully to propel the blood into the aorta, the main artery of the body. From the aorta, the blood is distributed through a network of arteries to the various organs and tissues, providing them with the oxygen and nutrients necessary for their function.

The structure of the left ventricle is particularly suited for this task, as it has thick muscular walls that enable powerful contractions needed to overcome the high pressure of systemic circulation. This is essential as the blood must travel throughout the body, which requires more force compared to the pulmonary circulation handled by the right side of the heart. Other parts of the heart, such as the atria and the right ventricle, have different roles in the circulatory system, but it is the left ventricle that is primarily tasked with delivering oxygenated blood to the systemic circulation.