German physiologist and anatomist who turned into one of the best of nineteenth century. He and Magendie are credited for setting up the technology of body structure in its cutting-edge form. His well-known discovery of the precept of unique nerve energies (1826) while he turned into capin a position to expose that sensory nerves impulses, but stimulated, can be interpreted withinside the identical way. For example, any stimulation of the optic nerve effects in a sensation of mild, whether or not mild is absolutely worried or not. His essential work, Handbuch der Physiologie des Menschen für Vorlesungen, (Elements of Physiology, in 2 vols.) turned into posted in 1833-40. His large pathology research covered hermaphroditism, embryology, echinoderms, fishes, lmph, chyle, the blood and the voice. Died 28 Apr 1858 at age 56 (born 14 Jul 1801).