The superior surface features the sutures that connect the bones of the calvaria: the sagittal, coronal and lambdoid sutures. Each parietal bone contains a parietal foramen that forms a channel for the emissary vein. The most prominent feature on the inferior view of the calvaria called the groove for superior sagittal sinus right in the middle. Anteriorly, the edges of this groove unite to form a bony ridge called the frontal crest. On either side of the groove for superior sagittal sinus there are several round pits called the granular foveolae, which house the arachnoid granulations. Moving further laterally, there are many branching grooves, called arterial grooves, in which the meningeal arteries course.
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