Johannes Dryander (Eichmann) (1500 - 1560) was a German anatomist. He studied medicine and anatomy at the University of Paris from 1528 to 1534. In 1535, he was appointed professor of medicine at the University of Marburg. He was the author of the first text illustrating a Galenic dissection of the human brain. An expanded edition of this early book, the Anatomiae pars prior, was published in 1537. The brain is depicted in eight figures, with four additional plates describing the skull, skull base, and cranial sutures. Detailed illustrations of the dura mater, cerebral cortex, and posterior fossa structures with clear, but inaccurate, relationship to the cranial nerves. In 1542, he published a translated edition of Mundinus' anatomy. He continued to write on medical subjects as well as mathematics and astrology until his death in 1560 at the age of 59 or 60. Note: Dryander is a family name. It originates as a 16th century name, literally meaning "oak-man". It was used by people whose original name was Eichmann ("oak-man"), Eichholz ("oak-wood"), de Enzinas ("of the holm-oaks") etc.