Human Heart Anatomy Diagram - Chambers, Valves, and Blood Flow Explained #2367870 (License: Personal Use)

The diagram depicts the human heart in cross-section, highlighting the right atrium, right ventricle, left atrium, and left ventricle, along with the tricuspid, pulmonary, mitral, and aortic valves. Arrows indicate the direction of blood flow: deoxygenated blood enters the right side from the body, goes to the lungs for oxygenation, then returns to the left side to be pumped systemically. Labels clarify functional anatomy for educational purposes.

Used in medical education, biology textbooks, health websites, and patient education materials to explain cardiac structure and circulation; matches user intent for learning or teaching heart physiology.