Persian anatomical illustration of the human body showing arteries and viscera, c.18th century.

From a manuscript attributed to Shikastah-Nastaliq, this anatomical drawing is thought to be a copy of an illustration from the Tashrih bi al-Taswir, or ‘Illustrated Anatomy’ by Mansur (d. after 1422). The heart is shown with exaggerated auricles - small muscular pouches which protrude from the atria - which Mansur describes as “an appendage that resembles an ear”. (via)