Verwandte Artikel zu The human brain, its configuration, structure, development...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1836 Excerpt: ...from the disposition of cineritious and medullary neurine, before mentioned as the arbor vitce. If the student carry his eye along that portion of the medullary neurine which corresponds to the stalk of the tree, he will find it emerging from the cerebellum, and turning up to a little rounded body about the size of a small pea; immediately anterior to which is another of rather larger size; the two together are 4. The optic tubercles, or corpora quadrigemina, the posterior being the testes, the anterior the nates. The structure which has been likened to the stalk of the tree, will be recognised as the commissure connecting the greater cerebral mass to the lesser, in other words, the cerebrum to the cerebellum; this is 5. The intercerebral commissure, or, from its oblique position in the skull, the oblique commissure. Beneath the optic tubercles we observe, rising up, as it were, from the pons Varolii, a structure previously mentioned, namely, 6. The crus cerebri. A section of this part shows it to consist of medullary neurine above and below, with cineritious interposed between the two. The medullary neurine, which is above the cineritious, is the sensory tract, that below, the motor tract. The cineritious neurine has been long known to anatomists by the name of locus niger. Immediately in front of the crus and optic tubercles is a rounded nodule of considerable size, being about the same dimensions as the pons Varolii, called 7. The thalamus nervi optici by anatomists of the old school, the posterior cerebral ganglion of the cord by more modern teachers. Anterior to this ganglion, and partly overlapping it, will be observed some fibres, which, appearing to spring from the under part of the brain, run backwards and upwards; these fibres form a portion of a ...
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- VerlagRareBooksClub.com
- Erscheinungsdatum2012
- ISBN 10 0217331149
- ISBN 13 9780217331142
- EinbandTapa blanda
- SpracheEnglisch
- Anzahl der Seiten108
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