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.
Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.)
|Anatomical terms of bone|