situated between the first and the third occipital c's. middle temporosphenoidal c

A small gyrus continuous with the middle occipital or angular gyrus, occipitotemporal c. Two small c's on the lower surface of the temporosphenoidal lobe. The name is sometimes given to the fusiform lobule alone, olfactory C. See olfactory lobe, under lobe, orbital c's. The small gyri on the orbital surface of the frontal lobe. parietal c's. See ascending parietal c. and superior parietal c. posterior orbital c. A small c. situated on the posterior and outer side of the orbital sulcus, and continuous with the inferior frontal c. second (or middle) frontal c. A c. which is continuous posteriorly with the ascending frontal c, runs forward along the medial surface of the lobe, and, curving around its anterior extremity, becomes continuous with the middle orbital gyrus on the inferior surface, superior frontal c. Ac. which bounds the great longitudinal fi ure, arising posteriorly from the upper end of the ascending frontal c, and turning around the anterior extremity of the frontal lobe to appear on its under surface as the internal orbital c. superior occipital c. The upper of the three c's on the superior surface of the occipital lobe, superior parietal c. The portion of the parietal lobe which is limited anteriorly by the upper part of the fi ure of Rolando, posteriorly by the external parieto-occipital fi ure, and inferiorly by the intraparietal sulcus. superior temporosphenoidal c. The upper of the three c's forming the temporosphenoidal lobe. It lies and is parallel with the sylvian fi ure. supra marginal c. The anterior portion of the inferior parietal lobule, situated behind the inferior extremity of the intraparietal fi ure (sulcus), below which it joins the ascending parietal c. transverse orbital c. The gyrus occupying the posterior portion of the inferior surface of the frontal lobe, at the anterior extremity of the fi ure of Sylvius. Its general direction is transverse, uncinate c. A c. extending from near the posterior extremity of the occipital lobe to the apex of the temporosphenoidal; so called from its peculiar hooked anterior end. [Lat., con, with, + volvere, to roll.]