Guido de Vigevano’s Illustrated Human Digestive System
Here is an illustration of a human’s digestive system, as imagined by one Guido de Vigevano in 1345 CE. There’s a lot he got right here — esophagus, diaphragm, stomach, intestines, and sphincter. But there’s obviously also a lot of missing details, and so it’s not surprising that 14th-century ideas about digestion were similarly faulty.
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