. The anatomy of the central nervous system of man and of vertebrates in general. Neuroanatomy; Central Nervous System. THE FOEM-EELATIONS OF THE HUMAN BEAIN. 187 Yon observe there that, arising from the apex of the temporal lobe, it arches over the interbrain in a cnrve and descends in front of this to the boundary between the forebrain and interbrain. After the fornix, and the -plexus chorioideus attached to it, is divided and cnt away, a view of the opened ventricles is obtained (Fig. 125). The unpaired ventricle lying in the median line is the cavity of the primary fore- brain, now called
. The anatomy of the central nervous system of man and of vertebrates in general. Neuroanatomy; Central Nervous System. THE FOEM-EELATIONS OF THE HUMAN BEAIN. 187 Yon observe there that, arising from the apex of the temporal lobe, it arches over the interbrain in a cnrve and descends in front of this to the boundary between the forebrain and interbrain. After the fornix, and the -plexus chorioideus attached to it, is divided and cnt away, a view of the opened ventricles is obtained (Fig. 125). The unpaired ventricle lying in the median line is the cavity of the primary fore- brain, now called the ventriculus tertius. At its anterior end the fornix ascends from below. Then, on each side of the fornix there is found a com- munication of the ventriculus medius with the ventriculi laterales: the foramen Monroi. The part of this ventricle which lies in the frontal lobe is called the anterior horn, the part in the occipital lobe the posterior horn, and that in the temporal lobe the inferior horn. A finger could easily be introduced into each of the horns. The basal regions of both hemi- spheres are connected with one another by means of the commissura. SleQe wo Vordertilm imd Zmisdienhim zusammenslasssiLi Fig. 126.—Inner aspect of the embryonic hemisphere shown in Fig. 23. Shows the inner lower border of the hemisphere, which becomes thickened into the white medullary line of the fornix. The latter, however, only becomes medullated after birth. Zicischenhirx, Interbrain. Yorderhirn, forebrain. Stelle, Point where the forebrain and interbrain meet. anterior. The bundles of white, medullated fibers composing it are seen passing across in front of the pillars of the fornix. The nucleus caudatus rises from the fioor of the lateral ventricle. Far- ther posteriorly parts become visible which no longer belong to the hemi- spheres: the interbrain (tJialamus opticus) and the midbrain (corpora quadri- gemina). Behind these is seen the roof of the hindbrain (the cerebellum).
Size: 1841px × 1358px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksub, booksubjectneuroanatomy
