Human Circulatory System Anatomy - Arteries, Veins, and Heart Diagram #1499041 (License: Personal Use)

This high-resolution medical illustration depicts the human circulatory system in a transparent male torso, emphasizing systemic circulation from the heart through major arteries and veins. Red vessels represent oxygen-rich arterial blood traveling away from the heart, while blue vessels indicate oxygen-poor venous blood returning to the heart. The image includes detailed branching patterns in the head, neck, thorax, abdomen, and upper limbs, making it ideal for teaching cardiovascular physiology.

Used on educational health websites, medical textbooks, anatomy learning platforms, and patient-facing resources to explain how blood circulates through the body; matches user intent for understanding heart function, vascular disease, or basic biology.