File:Hand-book of physiology (1892) (14578725808).jpg

Identifier: handbookofphysio00bake (find matches)
Title: Hand-book of physiology
Year: 1892 (1890s)
Authors: Baker, W. Morrant, (William Morrant), 1839-1896 Harris, Vincent Dormer Kirkes, William Senhouse, 1823-1864. Hand-book of physiology. 13th ed
Subjects: Physiology Human physiology
Publisher: London : John Murray
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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r; Ti,first, T2, second, T3, third temporal convolutions; ti, first, t2, second temporal(Ecker.) at its upper end into what is termed the superior parietal lobule.The superior parietal lobule is separated from the inferior parietallobule by the intra-parietal sulcus. The inferior parietal lobule(pli courbe) is situated at the posterior and upper end of thefissure of Sylvius; it consists of (a) an anterior part (supra-marginal convolution) which hooks round the end of the fissure of CH. XVT.J LOBES OF THE CEREBRUM. 637 Sylvius, and joins the superior temporal convolution, and a posteriorpart (b) (angular gyrus) which hooks round into the middletemporal convolution. 3. Temporal (T.), contains three well-marked convolutions,parallel to each other, termed the superior, middle, and inferiortemporal. The superior and middle are separated by the parallelfissure. 4. Occipital (0.). This lobe lies behind the external perpen-dicular or parieto-occipital fissure, and contains three convolutions,
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Fig. 371. —View of the brain from above (semi-diagrammatic). Si, end of horizontal ramusof fissure of Sylvius. The other letters refer to the same parts asinFig. 370. (Ecker.) termed the superior, middle, and inferior occijrital. They areoften not well marked. In man, the external parieto-occipitalfissure is only to be distinguished as a notch in the inner edge ofthe hemisphere ; below this it is quite obliterated by the fourannectant gyri (plis de passage) which run nearly horizontally.The upper two connect the parietal, and the lower two thetemporal with the occipital lobe. 5. Central lobe, or island of Reil, which contains a number ofradiating convolutions (gyri operti). The fig. 372 shows the following gyri and sulci:— 63S THE NERVOUS SYSTEM. (CH. XVI. Gyrus fornicatus, a long curved convolution, parallel to andcurving round the corpus callosum, and swelling out at its hinderand upper end into the quadrate lobule (precuneus), which iscontinuous with the superior parietal lobul

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