Dryander held two public dissections in the following year and authored the first text illustrating a Galenic dissection of the human brain in 1536.[3] His Anatomiae pars prior, an expanded edition published in 1537, marked a significant transition from medieval scholasticism to the precise observations of Andreas Vesalius.[3]
Dryander's books featured detailed illustrations of the brain, skull, and cranial sutures, reflecting his personal use of dissections.[3] His translation of Mundinus' anatomy in 1542 drew the ire of the anatomist as it plagiarized a portion of Vesalius' Tabulae sex.[3] He continued his work on astrology and mathematics until his death in 1560.[3]
His early books, as products of rational scientific thought, contributed significantly to the development of modern anatomy.[3]