. A treatise on nervous and mental diseases, for students and practitioners of medicine. s been evoked from competentauthorities; and, indeed, they have been enabled to thus outline onlya few strands comparatively, so that Sachs, of Breslau, has recently ANATOMY, 33 undertaken a thorough investigation of the subject, and in this pres-ent year (1892) he has published the initial volume of his 14 and 15 illustrate what was known of these commissuralfibres up to the time of Sachss investigations, and Fig. 16 embodiesthe latter authors researches into these connecting strands of t
. A treatise on nervous and mental diseases, for students and practitioners of medicine. s been evoked from competentauthorities; and, indeed, they have been enabled to thus outline onlya few strands comparatively, so that Sachs, of Breslau, has recently ANATOMY, 33 undertaken a thorough investigation of the subject, and in this pres-ent year (1892) he has published the initial volume of his 14 and 15 illustrate what was known of these commissuralfibres up to the time of Sachss investigations, and Fig. 16 embodiesthe latter authors researches into these connecting strands of theoccipital lobe. This cortex or gray matter of the cerebrum is the organ of themind, and the so-called centres are simply the terminal stations ofthe diiferent peripheral nerves which are thus brought into connec-tion with the mind as a whole. The centres are therefore simplycompartments of the mind, and clinical observation constantly showsthat lesion of any one of these centres need not cause mental impair-ment ; and that, in order that mental impairment shall be produced. Fig Tearing of the cortex and the subcortical white matter along the medial surface of thecerebrum. (From Meyneet.) F., Tp., 0. Frontal, temporal, and occipital regions. Tr. Corpus eallosum. C. , surrounding the corpus eallosum and beneath the calloso-marginal Association fibres, i e., fibres connecting adjacent convolutions. R. Cortex, basal fasciculus of Burdach. Li. Inferior longitudinal fasciculus. Olf. Olfac-tory lobe. La. Lamina perforata anterior, ca. Anterior commissure, unc. Hook ofthe hook-shaped convolution or gyrus uncinatus. Sp. Septum pellucidum. Th. Opticthalamus, Descending fornix, m. Corpus medullare. Ascending Corpora quadrigemina. A. Aqueduct of Sylvius. Pv. Pulvinar of the optic Internal geniculate body. T. Tegmentum. Pd. Pes of crura cerebri. In-ternal stylus of the optic thalamus. Lp. Posterior longitudinal
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