Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.)
|Anatomical terms of bone|
The internal surface of the squamous part of the frontal bone is concave and presents in the upper part of the middle line a vertical groove, the sagittal sulcus, the edges of which unite below to form a ridge, the frontal crest; the sulcus lodges the superior sagittal sinus, while its margins and the crest afford attachment to the falx cerebri.
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