MEHAU KULYK / SCIENCE PHOTO LIBRARY MEHAU KULYK / SCIENCE PHOTO LIBRARY
Medieval venous system. Computer-enhanced folio from a 13th century book showing the blood circulation (veins) of a frog-like human figure. The written text is in latin. Figures in anatomical drawings of the time were usually placed in frog-like postures. Veins are depicted as thin lines running down the arms, legs, into the head, and criss-crossing at a central small heart. The heart lies over a larger round stomach, while a coiled intestine and leaf-like liver of the digestive system are also seen. The accuracy of this medieval anatomy is crude and schematic. Taken from the Ashmole manuscript 399, Bodleian Library, Oxford.
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