Tuesday, February 22, 2005

Nervous System, Human, Reciprocal innervation

Any cold, hot, or noxious stimulus striking the skin of the foot contracts the flexor muscle of that limb, relaxes the extensor muscles of the same limb, and extends the opposite limb. The purpose of these movements is to remove one limb from harm while shifting weight to the opposite limb. That is the first and immediate response, but a slower and longer-lasting reflex

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