descartes. charles sherrington at 50 sherington’s physiology, c1900-1945
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Descartes
Charles Sherrington at 50
Sherington’s Physiology, c1900-1945
A pool of motor neuronsIn the spinal cordServes each muscle
These pools form aTopographic map(sort of)
Sherrington’s Conceptual masterpieceThe Stretch Reflex
The sensory element:
The Stretch Reflex Circuit
Another View of theStretch Reflex
Note that some other systemHas to set the initial positionOf the limb
The Crossed ExtensionReflex
•Involves excitation andInhibition•Activates muscles onboth sides of body
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