Human Heart Blood Vessels, Circa 1911

human heart blood vessels vintage illustration vessel system anatomy anatomical body organ science scientific medical medicine education educational academics academical antique retro old ventricle left right pulmonary artery arteries arterial vein veins aorta auricle auricles superior upper vena cava cardio cardiovascular cardio-vascular stock resource free image picture scan scanned art artwork graphic design scrapbook scrapbooking black white