| crista frontalis | A ridge arising at the termination of the sagittal sulcus on the cerebral surface of the frontal bone and ending at the foramen caecum. Synonym: crista frontalis. (05 Mar 2000) |
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| processus frontalis maxillae | The upward extension from the body of the maxilla, which articulates with the frontal bone. Synonym: nasal process, processus frontalis maxillae. (05 Mar 2000) |
| processus frontalis ossis zygomatici | The process of the zygomatic bone which extends upward to form the lateral margin of the orbit and articulates with the frontal bone and greater wing of the sphenoid bone. Synonym: frontosphenoidal process, processus frontalis ossis zygomatici. (05 Mar 2000) |
| processus zygomaticus ossis frontalis | The massive projection of the frontal bone that joins the zygomatic bone to form the lateral margin of the orbit. Synonym: processus zygomaticus ossis frontalis. (05 Mar 2000) |
| hyperostosis frontalis interna | <radiology> Overgrowth of bone at the inner table of the frontal bone, usually bilateral and symmetrical, chiefly in females greater than 35 y.o., no clinical siginificance, unknown aetiology, irregular cortical thickening of the frontal area, spares areas occupied by superior sagital sinus and venous channels, may be 1 cm or thicker, occasionaly extends to parietal bones and orbital roofs, hyperostosis calvariae diffusa: variant of HFI: more diffuse thickening of vault (involving both tables) see: increased skull thickness (12 Dec 1998) |
| sinus frontalis | One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the frontal bone. (12 Dec 1998) |
| spina frontalis | S, nasalis ossis frontalis. (05 Mar 2000) |
| spina nasalis ossis frontalis | A projection from the centre of the nasal part of the frontal bone, which lies between and articulates with the nasal bones and the perpendicular plate of the ethmoid. Synonym: spina nasalis ossis frontalis. (05 Mar 2000) |
| squama frontalis | The broad curved portion of the frontal bone forming the forehead. Synonym: squama frontalis. (05 Mar 2000) |
| nervus frontalis | <anatomy, nerve> A branch of the ophthalmic nerve which divides within the orbit into the supratrochlear and the supraorbital nerves. Synonym: nervus frontalis. (05 Mar 2000) |
| norma frontalis | The outline of the skull viewed from in front. Synonym: norma anterior, norma frontalis. (05 Mar 2000) |
| sutura frontalis | The suture between the two halves of the frontal bone, usually obliterated by about the sixth year; if persistent it is called a metropic suture. Synonym: sutura frontalis. (05 Mar 2000) |
| incisura frontalis | A small notch, sometimes a foramen, on the orbital margin of the frontal bone medial to the supraorbital notch. Synonym: incisura frontalis. (05 Mar 2000) |
| torus frontalis | A slight prominence on the frontal bone at the root of the nose. (05 Mar 2000) |
| eminentia frontalis | An alternate term for frontal eminence, frontal eminence. (05 Mar 2000) |