Human Circulatory System Diagram - Anatomy & Function Explained #3627553 (License: Personal Use)

The image depicts the dual-loop circulatory system: the pulmonary circuit (blue) carries deoxygenated blood from the right ventricle through the pulmonary arteries to the lungs, then back via pulmonary veins to the left atrium; the systemic circuit (red) delivers oxygenated blood from the left ventricle through the aorta to the body, returning via the venae cavae to the right atrium. Key structures-including atria, ventricles, and major vessels-are clearly labeled with color-coded flow paths for intuitive learning.

Used in educational web pages, medical blogs, biology textbooks, and health literacy resources to teach cardiovascular anatomy and physiology; matches user intent for visual learning, exam prep, or patient education.