| pars nasalis ossis frontalis | Nasal portion of the frontal bone which lies between the two orbital parts anteriorly and forms part of the roof of the nasal cavity. Synonym: pars nasalis ossis frontalis. (05 Mar 2000) |
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| pars orbitalis ossis frontalis | The portion of the frontal bone that contributes to the formation of the orbits; the most rostral of three cortical convolutions that togetther form the inferior frontal gyrus. Synonym: pars orbitalis ossis frontalis. (05 Mar 2000) |
| regio frontalis capitis | The surface region of the head corresponding to the outlines of the frontal bone. Synonym: regio frontalis capitis. (05 Mar 2000) |
| gyrus frontalis inferior | A broad convolution on the convexity of the frontal lobe of the cerebrum between the inferior frontal sulcus and the sylvian fissure; divided by branches of the sylvian fissure into three parts: pars (opercularis) basilaris, triangular part, and orbital part; the first two constitute a portion of the frontal operculum. Synonym: gyrus frontalis inferior, inferior frontal convolution. (05 Mar 2000) |
| gyrus frontalis medius | A convolution on the convexity of each frontal lobe of the cerebrum running in an anteroposterior direction between the superior and inferior frontal sulci. Synonym: gyrus frontalis medius, middle frontal convolution. (05 Mar 2000) |
| gyrus frontalis superior | A broad convolution running in an anteroposterior direction on the medial edge of the convex surface and of each frontal lobe. Synonym: gyrus frontalis superior, marginal gyrus, superior frontal convolution. (05 Mar 2000) |
| musculus frontalis | See: occipitofrontalis muscle. (05 Mar 2000) |
| polus frontalis cerebri | The most anterior promontory of each cerebral hemisphere. Synonym: polus frontalis cerebri, frontal pole. (05 Mar 2000) |
| 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) |