Human Circulatory System Blood Flow Diagram - Anatomy & Physiology Guide #3627539 (License: Personal Use)

The image depicts the systemic and pulmonary circulation loops, with red indicating oxygen-rich blood (e.g., aorta, pulmonary veins) and blue representing deoxygenated blood (e.g., superior/inferior vena cava, pulmonary arteries). Key structures include the heart as the central pump, lungs for gas exchange, and major vessels routing blood to the head, arms, digestive organs, and lower limbs. Arrows show directional flow, clarifying the dual-loop design of the human cardiovascular system.

Used in educational websites, medical blogs, and anatomy e-learning modules to explain cardiovascular physiology; matches user intent for visual learning, student study aids, or patient education on heart health and circulation.