![](http://up.wiki.x.io/wikipedia/commons/thumb/4/44/17th_century_Persian_digestive_system.jpg/220px-17th_century_Persian_digestive_system.jpg)
This image from 11th century AH (17th century AD) is a Persian manuscript by Mansur ibn Muhammad Ahmad at the Majles Library, Tehran.
Photo credit: Seyyed Hossein Nasr (1976). Islamic Science:An Illustrated Study, World of Islam Festival Publishing Ltd.. ISBN 090503502X