Caption:
Historical illustration showing a section of the brain. From "The Anatomy of the Brain Explained in a Series of Engravings" by Sir Charles Bell, 1802. Sir Charles Bell (1774-1842) worked mainly on corpses, but he did conduct some neurological experiments on living animals, cutting or stimulating nerves to determine the localization of brain function: he could see no other means of demonstrating his belief in the differential function of the cerebrum and cerebellum, based on his work as a dissector. He established the basic distinction between anterior and posterior roots of the spinal nerves, which were later shown to govern movement and sensation respectively.