The |frontal bone| is one of the flat cranial bones that forms the forehead and roof of the |orbits| (eye sockets). The |frontal bone| also forms the upper part of the |nasal cavity| as well as forming the floor of the cranium, where the |brain| is housed. Two cavities, the |frontal sinuses|, lie within the |frontal bone|, just behind the spots above each |orbit|. The |frontal bone| is attached to the |parietal bones| by the |coronal suture|, and is also connected by sutures to the sphenoid, ethmoid, maxillary, nasal, lachrymal, and malar (zygomaticofacial) bones. In the center of the front of the |frontal bone|, just between and slightly above the |orbits|, is a raised portion of the bone, called the |glabella|. The |frontal bone| also features two foramina (holes, or notches), one just above each |orbit| (and so called supraorbital foramina).
