The relations of mind and brain Author:Henry Calderwood Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: portions of the grey or cellular matter, points towards the conclusion that there is co-ordination and co-operation of the Front Cerebellum. Fio. 9.—CONNEC... more »TING BAND WHICH UNITES THE TWO HEMISPHERES. (From Quain's Anatomy.) The upper surface of the corpus callosum has been fully exposed by separating the cerebral hemispheres and throwing them to the side; the gyrus fornicatus has been detached, and the transverse fibres of the corpus callosum traced for some distance into the cerebral medullary substance. 1, the upper surface of the corpus callosum; 2, median furrow or raphe; 3, longitudinal striie bounding the furrow ; 4, swelling formed by the transverse bands as they pass into the cerebrum, 6 ; anterior extremity or knee of the corpus callosum ; 6, posterior extremity; 7, anterior, and 8, posterior part of the mass of fibres proceeding from the corpus callosum ; 9, margin of the swelling; 10, anterior part of the convolution of the corpus callosum; 11, hem or band of union of this convolution; 12, internal convolutions of the parietal lobe : 13, upper surface of the cerebellum." opposite parts in providing nerve stimulus or innervation for the ramifications of nerve fibre which spread over the body. If next we penetrate beneath this connecting band, we come upon a complicated order of arrangements, presenting to view several distinct bodies, separated by a series of spaces (ventricles) filled with fluid. Of these ventricles there are five inall. Some of them are shown on fig. l0, along with a variety of bodies congregated towards the base of the brain. In the central part of fig. l0, towards the back, sweeping in a semicircular form round the innermost visible point of the longitudinal fissure, is seen the posterior swelling of the con- Front Fio. 10....« less