Human Circulatory System Anatomy Diagram - Educational Medical Illustration #3623207 (License: Personal Use)

The image displays four side-by-side human anatomical silhouettes: the first uses warm tones (orange/red) for vessels, the second features white outlines with red/blue vasculature, the third highlights vessels on a semi-transparent body, and the fourth is a plain white silhouette. All emphasize the heart, major arteries (e.g., aorta), and venous return pathways, supporting visual learning of systemic circulation. The consistent frontal orientation allows easy comparison of vascular patterns.

Used in medical education websites, anatomy e-learning modules, healthcare blogs, and patient information portals to explain cardiovascular structure; matches user intent for visual study aids, teaching resources, or health literacy content.