![Portrait of Leonardo da Vinci attributed to Francesco Melzi](https://cmsadmin.rct.uk/sites/default/files/lead_image_half_height/RC1894_Leonardo%201600%20x%20625_Yellow.jpg)
LEONARDO DA VINCI (VINCI 1452-AMBOISE 1519)
Recto: The bladder. Verso: The lungs
c.1508RCIN 919054
Though Leonardo now had much more access to human material, he continued to conduct animal dissections too. The subject here was probably a pig, with the proportions and orientation adjusted so that the lungs seem human at first glance.