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| Description: Descartes‘s model of simple reflexes, Putting a foot near a flame causes particles emanating from the flame (A) to pull on the skin on your foot (B). This pulling on the skin stretches a little thread (C). The thread being pulled opens the entrance (9) to a pore (d). The open pore permits animal fluids to flow into it from a cavity within the brain (F). From the cavity. these animal spirits flow down the tube to the muscles. pulling the foot away from the flame.
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