Johann Evangelist Purkinje (1787 –1869) cseh anatómus és fiziológus portréja

Jan Evangelista Purkyně also written Johann Evangelist Purkinje) (1787 –1869) was a Czech anatomist and physiologist. He was one of the best known scientists of his time. In 1839, he coined the term 'protoplasm' for the fluid substance of a cell. His son was the painter Karel Purkyně. Such was his fame that when people from outside Europe wrote letters to him, all that they needed to put as the ad…