Human Heart Anatomy and Blood Circulation Diagram #1203196 (License: Personal Use)

The image displays a cross-sectional view of the human heart with color-coded pathways-blue for deoxygenated blood and red for oxygenated blood-tracing circulation from the upper and lower body into the right atrium, through the right ventricle to the lungs, then back via the pulmonary veins to the left atrium and ventricle, and finally out through the aorta. Key structures including the pulmonary artery, aorta, vena cava, and valves are clearly labeled, with directional arrows indicating flow. The transparent overlay reveals internal chamber anatomy and vascular connections.

Used in medical education, biology textbooks, health websites, and patient information portals to explain cardiac physiology; matches user intent for learning heart structure, circulation pathways, or preparing for exams.