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extrusion reflex |
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extrusion reflex [ekstro̅o̅′zhən] Etymology: L, extrudere, to push out, reflectere, to bend back a normal response in infants to force the tongue outward when it is touched or depressed. The reflex begins to disappear by about 3 or 4 months of age. Constant protrusion of a large tongue may be a sign of Down syndrome. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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