Human Heart Anatomy Diagram - Chambers, Valves, and Blood Flow #1664341 (License: Personal Use)

This medical illustration depicts a sagittal cross-section of the human heart, highlighting the right and left atria and ventricles, the interventricular septum, and critical valves including the semi-lunar (aortic and pulmonary) and atrio-ventricular (tricuspid and mitral) valves. Major vessels such as the vena cavae, aorta, pulmonary artery, and pulmonary veins are also annotated to clarify blood flow pathways. The shading and labeling support visual learning in anatomy and physiology contexts.

Used in medical education, biology textbooks, online health resources, and patient education materials to explain cardiac structure and function; matches user intent for studying or teaching cardiovascular anatomy.