groove for sigmoid sinus

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groove for sig·moid si·nus

a broad groove in the posterior cranial fossa, first situated on the lateral portion of the occipital bone, then curving around the jugular process on to the mastoid portion of the temporal bone, and finally turning sharply on the posterior inferior angle of the parietal bone and becoming continuous with the transverse groove; it lodges the transverse sinus.
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References in periodicals archive ?
The posterior condylar canal opens at the groove for sigmoid sinus, posterolateral to the jugular foramen in the posterior cranial fossa.
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