Human Heart Anatomy Diagram - Labeled Cross-Section for Medical Education #3420479 (License: Personal Use)

This medical illustration presents a sagittal cross-section of the human heart, clearly depicting the right and left atria and ventricles, the tricuspid and mitral (bicuspid) valves, and the pulmonary artery and aorta. The semilunar valves and chordae tendineae are also visible, emphasizing functional anatomy relevant to blood flow and cardiac cycle mechanics. Color-coding distinguishes oxygenated (red) from deoxygenated (blue/purple) blood pathways.

Used in educational websites, medical textbooks, anatomy courses, and patient-facing health resources to explain cardiac structure and function; matches user intent for learning or reviewing heart physiology.