. The brain as an organ of mind. r human types previouslydescribed. Consequently in them the inferior-posteriorborder of the Cerebral Hemisphere, as it extends alongthe side of the Cerebellum, is much more nearly horizon-tal than it is in either of the two African women. Inthese latter, however, an advance of the same kind is tobe met with in comparison with what obtains in the Cere-bral Hemispheres of the great man-like Apes (p. 296). * In the brain of the 61 month Foetus, and in that of Fieschirepresented by Gratiolet (loc. cit., PI. xxx. tig. 2, and PI. xij. fig. 2)the Temporal Lobes are bo
. The brain as an organ of mind. r human types previouslydescribed. Consequently in them the inferior-posteriorborder of the Cerebral Hemisphere, as it extends alongthe side of the Cerebellum, is much more nearly horizon-tal than it is in either of the two African women. Inthese latter, however, an advance of the same kind is tobe met with in comparison with what obtains in the Cere-bral Hemispheres of the great man-like Apes (p. 296). * In the brain of the 61 month Foetus, and in that of Fieschirepresented by Gratiolet (loc. cit., PI. xxx. tig. 2, and PI. xij. fig. 2)the Temporal Lobes are both long and broad, whilst in that of thenew-born Infant (PI. xxx. fig. 3), and in the brain of the Charruas*(PI. xix. fig. 1), this same Lobe though short is still extremelybroad. Chap. XXL] OF THE HUMAN BRAIN. 397 In the liigber forms of the Haman Brain—as in those ofGauss and De Morgan, and also in the Journalist—theTemporal and Occipital Lobes of each Hemisphere togetherbear a mach smaller proportion to the mass of brain-. \^l^ii!]^0llt^ Fig. 144.—Under Surface of the Human Brain. (Allen Thomson.)1, 1, Great longitudinal fissure ; 2, 2, 2, convolutions of under surface of frontallobe; 3, 3, 3, prolongation to base of the fissure of Sylvius; 4, 4, 4, convolutionsof the temporal lobe ; 5, 5, occpital lobe ; 6, anterior pyramids of medulla ; +, pos-terior extremity of median lobe of cerebellum ; 7, 8, 9, 10, lobules of the lateral lobeof the cei ebelinm. I-IX. Cranial nerves, all but the first more fully Feen in nextfigure. The ninth nerve of the right side has been removed. X. First cervicalnerve. substance comprised in the Frontal and Parietal Lobesthan is the case in brains of a lower type. In the lowerQuadrumana, also, the Tempore-Occipital segment of the18 398 THE EXTERNAL CONFIGURATION Hemisphere, instead of being much less, is about equal to,or it may be of even slightly greater bulk than, the con-joined Fronto-Parietal segment. Thus the proportionsmet with in the
Size: 1412px × 1769px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1, booksubjectbrain, booksubjectpsychologycomparative
