obversa

Updated: May 5, 2025

Leonardo da Vinci, in a well-known drawing representing a sagittal section of a man and a woman connected in this position of so-called Venus obversa; has shown how well adapted the position is to the normal position of the organs in the human species.

Havelock Ellis - Studies in the Psychology of Sex, Volume 5 : Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy