Learn about the intricate network of arteries in the human body. Explore the functions and importance of these vital blood vessels to maintain a healthy circulatory system.
Human Heart: Diagram and Anatomy of the Heart Internal Anatomy of the Heart The human heart is a muscular organ that pumps blood throughout the body. It is located in the center of the chest and is about the size of a fist. The heart is divided into four chambers: two atria and two ventricles.