Human Heart Anatomy Diagram - Educational Medical Illustration #3045690 (License: Personal Use)

This medical illustration depicts the four chambers of the human heart-two atria and two ventricles-with visible valves and major vessels including the aorta, pulmonary artery, superior/inferior vena cava, and pulmonary veins. The color-coding distinguishes oxygen-rich (red) from oxygen-poor (blue) blood circulation, supporting understanding of systemic and pulmonary circulation. Ideal for teaching cardiovascular physiology and anatomy fundamentals.

Used in educational websites, medical textbooks, health blogs, and classroom presentations to explain heart structure and function; matches user intent for learning or reviewing cardiac anatomy.