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contrecoup injury |
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contrecoup injury [kôtreko̅o̅′] Etymology: L, contra, against; Fr, coup, blow; L, injuria an injury, usually involving the brain, in which the tissue damage is on the side opposite the trauma site, as when a blow to the left side of the head results in brain damage on the right side. contrecoup injury Traumatology A brain 'bruise' diametrically opposite the site of an impacting blow to the cranium, where the head is in motion and the brain lags behind by a split-second; a blow to the back of the head results
in lesions of the frontal lobes and horns of the temporal lobes; a blow to the top of the skull results in contrecoup lesions to the hippocampus and the corpus callosum. See Boxing. Cf Coup. 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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It is known, however, that blows causing rotation of the brain produce shearing forces, which are tolerated more poorly than either coup or contrecoup injury (11). |
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