Anatomical Study of the PenisRobert Bénard

This copperplate engraving (1751–76), made for Diderot and d’Alembert’s Encyclopédie, details the penis’s structure, showing corpus cavernosum and corpus spongiosum. Ties at the base restrict blood flow, clarifying the venous network for study. Such methods reflected Enlightenment science’s pursuit of precision in anatomy.