Human Heart Anatomy Diagram - Chambers, Blood Flow & Major Vessels #1499022 (License: Personal Use)

The illustration depicts the four-chambered human heart with clear labeling of the right atrium, right ventricle, left atrium, and left ventricle. Blue arrows indicate deoxygenated blood flow from the anterior and posterior vena cava to the right side of the heart and onward to the lungs, while red arrows show oxygenated blood returning from the lungs to the left atrium and being pumped out via the aorta. Key structures such as the aorta and pulmonary circulation pathways are highlighted for educational clarity.

Used in medical education, biology textbooks, online learning modules, and healthcare patient information resources to explain cardiac anatomy and circulation. Matches user intent for studying or teaching cardiovascular physiology.