The thirty-fourth of fifty-one plates first published in Steven Blankaart's De nieuw hervormde anatomie ofte ontleding des menschen lichaams, Amsterdam 1686, with a Latin edition the following year. The plates are made up of uncredited reduced copies of previously published illustrations, several to a page. In the notes to this plate in James Drake's Anthropologia nova (London 1707, 2 vols), where the Blankaart plates were published in an appendix to the first volume, the figure is described as after Reinier de Graaf, who published De mulierum organis generationi inservientibus tractatus novus in Leiden in 1672. It is taken from the first plate of this book, an engraving after De Graaf own design
