A hidden rib found in Michelangelo Buonarroti's fresco The Creation of Adam.

The fresco The Creation of Adam (1511), painted on the ceiling of the Sistine Chapel by the great genius of human anatomy Michelangelo Buonarroti (1475-1564), represents one of the most emblematic and best-known scenes in the world. This fresco illustrates a key passage from the Book of Genesis: the moment when God creates the first man, Adam. Since its completion, this work has been intensively studied by many scholars of art, and by several anatomists, who have pointed out signs of anatomical representations contained in the scene. However, there is still some uncertainty regarding this famous scene, especially in relation to its complete iconography. In an attempt to understand Michelangelo's purpose better regarding this emblematic scene, this article presents unpublished evidence that the artist could have concealed within the figure of Adam the anatomical image of a rib which, according to traditional Biblical accounts, is iconographically associated with the origin of Eve, Adam's companion. Curiously, this hidden rib in Adam's body figure could be related to the traditional view of the origin of the first humans expounded in the Jewish Kabbalah. Clin. Anat. 32:648-653, 2019.