| sulcus frontalis medius | A relatively shallow sagittal fissure of the brain dividing the middle frontal convolution into an upper and lower part; this sulcus is found only in humans and anthropoid apes; at its anterior extremity it bifurcates, the two branches spreading out laterally and constituting the frontomarginal sulcus. Synonym: median frontal sulcus, sulcus frontalis medius. (05 Mar 2000) |
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| sulcus frontalis superior | A sagittal fissure on the superior surface of each frontal lobe of the cerebrum starting from the precentral sulcus; it forms the lateral boundary of the superior frontal convolution. Synonym: sulcus frontalis superior. (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) |
| facies externa ossis frontalis | The convex outer surface of the frontal bone. Synonym: facies externa ossis frontalis. (05 Mar 2000) |
| facies interna ossis frontalis | The surface of the frontal bone that contributes to the wall of the cranial cavity. Synonym: facies interna ossis frontalis. (05 Mar 2000) |
| foramen caecum ossis frontalis | <anatomy> Blind or caecal foramen of the frontal bone; the blind foramen formed immediately anterior to the crista galli by a notch at the lower end of the frontal crest and its articulation with the ethmoid bone. It is insignificant postnatally, but gives passage to vessels during development. Synonym: foramen caecum ossis frontalis, blind foramen of frontal bone, caecal foramen of frontal bone. (05 Mar 2000) |
| frontalis | Synonym: frontal. Origin: L. (05 Mar 2000) |
| frontalis muscle | <anatomy> The anterior belly of the occipitofrontalis muscle. See: occipitofrontalis muscle. Synonym: venter frontalis musculi occipitofrontalis, frontalis muscle. (05 Mar 2000) |
| lobus frontalis cerebri | The portion of each cerebral hemisphere anterior to the central sulcus. Synonym: lobus frontalis cerebri, frontal lobe. (05 Mar 2000) |