Regnier de Graaf (1641–1673)
Born 1641 CE, died 1673 CE.
Regnier de Graaf (English spelling), original Dutch spelling Reinier de Graaf, or Latinized Reijnerus de Graeff (30 July 1641 – 17 August 1673), was a Dutch physician, physiologist and anatomist who made key discoveries in reproductive biology. He specialized in iatrochemistry and iatrogenesis, and was the first to develop a syringe to inject dye into human reproductive organs so that he could understand their structure and function.
Text from the Wikipedia article Regnier_de_Graaf, licensed CC BY-SA 4.0.