Human Heart Anatomy Diagram - Educational Medical Illustration #3417230 (License: Personal Use)

This medical illustration depicts the four chambers of the heart-left and right atria and ventricles-with visible valves, pulmonary artery, aorta, and vena cava. The color-coding distinguishes oxygen-rich (red) from oxygen-poor (blue) blood pathways, supporting understanding of systemic and pulmonary circulation. The style is clean and educational, suitable for classroom or clinical reference.

Used in biology textbooks, health education websites, medical training modules, and patient information resources to explain cardiac anatomy and circulation. Matches user intent for learning, teaching, or reviewing heart structure and function.