Magendie-Bell Law _5

Magendie-Bell Law _5 - Magendie Bell Law

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Magendie – Bell Law http://www.smithsrisca.demon.co.uk/PSYbell1811.html Bell (1811); Magendie (1822): Sensory fibres from each peripheral nerve enter the spinal cord via the sensory roots (blue cluster, lower right), and then ascend via the dorsal columns of the spinal cord to the brainstem. Motor fibres leave the spinal cord via the motor roots (red cluster, lower left), having descended via the anterior columns of the spinal cord. Captions above the level of the brainstem show the more complete understanding of brain location established by research later in the nineteenth century. http://www.whonamedit.com/synd.cfm/2383.html Charles Bell's work of 1811 Contains the first reference to experimental work on the motor functions the ventral spinal nerve without, however, establishing the sensory functions of the dorsal roots. In 1822 Magendie definitively discovered that the anterior root is motor and that the dorsal root is sensory. Magendie announced that "section of the dorsal root abolishes
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Magendie-Bell Law _5 - Magendie Bell Law

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