internal occipital protuberance

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in·ter·nal oc·cip·i·tal pro·tu·ber·ance

a projection from about the center of the cruciform eminence on the inner surface of the occipital bone.
References in periodicals archive ?
5) A discrete inflammatory reaction, at the inner face of the occipital bone, covered an oblong area between the lambda and the internal occipital protuberance (Figure 6).

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