Human Circulatory System Diagram - Arteries, Veins, and Organ Blood Flow #1203197 (License: Personal Use)

The diagram depicts the full human circulatory loop, with red indicating deoxygenated blood returning to the heart via superior/inferior vena cava and blue representing oxygenated blood pumped from the heart through arteries like the aorta. Key structures-including pulmonary arteries/veins, hepatic portal vessels, renal arteries, and capillary beds in lungs, liver, intestines, and kidneys-are clearly labeled with directional arrows. The heart is centrally positioned, showing right and left chambers and valve regions.

Used in medical education, anatomy textbooks, online health resources, and patient education materials to explain cardiovascular physiology; matches user intent for learning or reviewing systemic/pulmonary circulation.