The main purpose of the heart is to pump blood throughout the body, ensuring the delivery of oxygen and nutrients to tissues and organs while facilitating the removal of waste products. The heart is a muscular organ that functions as part of the circulatory system, consisting of four chambers: the right atrium, right ventricle, left atrium, and left ventricle. It operates through electrical impulses that trigger rhythmic contractions, maintaining blood circulation. A healthy heart is essential for overall bodily functions, support of metabolic processes, and regulation of blood pressure.