Georg Prochaska (sometimes also Juri, Jiří or Georgius Prochaska; Czech: Jiří Procháska) (10 April 1749 in Blížkovice – 17 July 1820 in Vienna[1]) was a leading Czech-Austrian anatomist, ophthalmologist, physiologist, writer and university professor. He lived in the Holy Roman Empire and then in the Austrian Empire. He wrote the first genuine textbook on physiology and created the concept of nerve conduction among other theories. He was a staunch promoter of the modern reflex theory.