Human Heart Anatomy Diagram - Blood Flow, Chambers & Vessels Explained #1499033 (License: Personal Use)

This high-resolution anatomical illustration depicts the four chambers of the human heart-right atrium, right ventricle, left atrium, and left ventricle-along with major vessels including the aorta, pulmonary artery, pulmonary vein, and inferior vena cava. Arrows indicate direction of blood flow: deoxygenated blood enters via the vena cava to the right side, is pumped to the lungs via the pulmonary artery, returns oxygenated via pulmonary veins to the left atrium, then to the left ventricle and out through the aorta. The heart muscle wall thickness and valve positions are accurately represented for educational clarity.

Used in medical education, biology textbooks, health websites, and patient-facing materials to explain cardiac physiology and circulation; matches user intent for learning heart structure/function or preparing for exams.