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The Secret Life of the Brain
History of the Brain 3-D Brain Anatomy Mind Illusions Scanning the Brain The Episodes:
History of the Brain
Charles Bell

Charles Bell.

Charles Bell, a Scottish surgeon, establishes that the nerves for each of the senses can be traced from specific areas of the brain to their end organs.
For example, he makes distinctions between the cranial nerve, which is connected to chewing, and the cranial nerve, which controls muscles of expression. He also demonstrates that motor and sensory functions are anatomically separated in the spinal roots. Previously, it had been believed that the two functions were combined.

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Courtesy of the National Library of Medicine.

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