. The anatomy of the central nervous system of man and of vertebrates in general. Neuroanatomy; Central Nervous System. METATHALAMUS AND HYPOTHALAMUS. 275 It soon separates, however, from its companion and, bending down pos- teriorly at an angle, extends into the tegmentum, posterior to the region of the corpora quadrigemina, where it may be traced until into the ganglia that lie beneath the aquseductus Sylvii. This is the tegmental bundle of the corpus mamillare. 8. Bamon y Cajal and EdUiker have recently stated that only a single bundle arises from the corpus mamillare, which passes dorsally
. The anatomy of the central nervous system of man and of vertebrates in general. Neuroanatomy; Central Nervous System. METATHALAMUS AND HYPOTHALAMUS. 275 It soon separates, however, from its companion and, bending down pos- teriorly at an angle, extends into the tegmentum, posterior to the region of the corpora quadrigemina, where it may be traced until into the ganglia that lie beneath the aquseductus Sylvii. This is the tegmental bundle of the corpus mamillare. 8. Bamon y Cajal and EdUiker have recently stated that only a single bundle arises from the corpus mamillare, which passes dorsally. The axis-cylinders of this bundle divide at some distance from their jaoint of origin. The anterior branches, or divisions, ended as the tractus thalamo-mamillaris in the nucleus anterior, the posterior as the tegmental bundle in a nucleus of the frontal tegmentum. KolUJcer. Fig. 177.—From the dog. Frontal section through the interbrain in the region of the posterior third of the thalamus. For the explanation of the greater part of the figure, see Fig. 169. In comparison with that of Fig. 169 there is to be noted in this section: the ganglion habenulae, in which the tsenia dis- appears; the inferior thalamic pedicle; the radiation of the ansa lentiformis into the medulla of the regio subthalamiea; the corpus Luys; and the separa- tion of the superior fillet from the medullary masses lateral and ventral to the thalamus. The pulvinar appears mesial to the corpus geniculatum laterale. EauJ). Bel. Mam., Tegmental mamillary bundle. Mark d. Reg. subthalamiea, Medulla of the regio subthalamiea. Nticl. H. L. Bdl., Nucleus of posterior longi- tudinal bundle. Obere ^ehleife, Superior fillet. Pars caudaUs Capsiike, etc., Posterior portion of the capsula interna, principally optic radiation. Stiel d. Corp. genie, u. Pulvinar, Pedicle of the corpus geniculatum and pulvinar. Unt. Thai. Stiel, Inferior thalamic Please note that these images are extracted from scanned page images
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