Human Heart Anatomy Diagram - Chambers, Valves, and Blood Flow Pathways #2367851 (License: Personal Use)

This medical illustration depicts the human heart’s internal structure, highlighting the right atrium, right ventricle, left atrium, and left ventricle, along with the pulmonary artery, pulmonary vein, aorta, and superior vena cava. Arrows indicate direction of blood flow: deoxygenated blood enters via superior/inferior vena cava into the right atrium, passes through the pulmonary valve to the lungs, returns oxygenated via pulmonary veins to the left atrium, then through the aortic valve to the aorta for systemic circulation. Key valves-including pulmonary and aortic-are clearly marked to emphasize their role in unidirectional flow.

Used in educational settings (e.g., biology/physiology textbooks, online courses, patient education materials) to explain cardiac anatomy and circulation; matches user intent for learning or reviewing heart structure and function.