Human Heart ❤️

The human heart is a remarkable muscular organ that serves as the central pump of the circulatory system. About the size of a fist, it continuously contracts and relaxes to pump blood throughout the body, delivering oxygen and nutrients to cells while removing waste products. The heart is divided into four chambers: two atria and two ventricles, which work in a coordinated manner to maintain circulation. This vital organ plays a crucial role in sustaining life by ensuring a constant flow of oxygenated blood to all body tissues and organs.