Johannes Purkinje (1787 –1869) was one of the best-known scientists of his time, now remembered for discovering, in 1837, the large neurons with branching dendrites of the cerebellum (Purkinje cells), and the fibers conducting electrical impulses from the atria to the ventricles of the heart (Purkinje fibers). In addition, he introduced into medicine the terms plasma and protoplasm, and was the first…