Human Heart Anatomy Diagram - Labeled Chambers, Valves & Major Vessels #3703537 (License: Personal Use)

This anatomical illustration depicts the four chambers of the human heart-right atrium, right ventricle, left atrium, and left ventricle-along with key valves (tricuspid, pulmonary, mitral, aortic) and major blood vessels including the superior and inferior vena cava, aorta, and pulmonary arteries and veins. The diagram uses color coding to distinguish oxygenated (red) and deoxygenated (blue/purple) blood flow pathways, supporting understanding of systemic and pulmonary circulation.

Used in biology, anatomy, and health education contexts-especially in K-12 and introductory college courses-for teaching cardiovascular structure and function; matches user intent for visual learning, study aids, or classroom handouts.