This infographic illustrates the external structures of the human heart, highlighting major blood vessels and coronary circulation. From the aorta and vena cavae to the coronary arteries and veins, each labeled part plays a vital role in blood circulation and heart function. Perfect for students, educators, and biology enthusiasts revising human anatomy in a clear, visual way. 👉 Keep following for more valuable biology content. #HumanHeart #HeartAnatomy #ExternalHeart #CardiovascularSystem #Bio