Human Circulatory System Diagram - Anatomy & Blood Flow Explained #3482296 (License: Personal Use)

The image depicts a simplified yet anatomically accurate schematic of the human cardiovascular system, with the heart at the center, connected to the lungs via pulmonary arteries and veins, and to the systemic circulation through the aorta and vena cava. Arteries are colored red to indicate oxygenated blood (except pulmonary artery), while veins are blue for deoxygenated blood (except pulmonary veins). Arrows show unidirectional flow, emphasizing the double-loop circulation: pulmonary (right heart → lungs → left heart) and systemic (left heart → body → right heart).

Used in educational web pages, biology textbooks, medical training modules, and health literacy resources to explain cardiovascular physiology; matches user intent for learning basic anatomy or understanding heart function and blood oxygenation.