Arterial grooves are branched bony impressions on the inner surface of the skull caused by the meningeal arteries.
Sulcus arteriae meningeae mediae
One of the arterial grooves is the Sulcus arteriae meningeae mediae, which is located on the inner surface of the Parietal bone as well as the Temporal bone, is caused by the Middle meningeal artery and its branches, and begins at the Foramen spinosum.
Figure