Human Circulatory System Diagram - Arteries, Veins, and Heart Anatomy #3224419 (License: Personal Use)

The image depicts a full-body schematic of the human circulatory system, emphasizing major arterial and venous pathways branching from the heart. Arteries are color-coded red to indicate oxygen-rich blood flow outward, while veins are blue for oxygen-poor return flow. Key structures such as the aorta, vena cava, and pulmonary vessels are implied through their systemic distribution.

Used in educational health websites, biology textbooks, or medical patient resources to explain cardiovascular function; targets students, teachers, and general readers seeking foundational anatomy knowledge.