Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Journal of Nervous and Mental Disease (Volume 8)

Journal of Nervous and Mental Disease (Volume 8)

Association, American Neurological

Paperback

General World History

Currently unavailable to order

ISBN10: 1154404765
ISBN13: 9781154404760
Publisher: General Books
Pages: 304
Weight: 1.20
Height: 0.64 Width: 7.44 Depth: 9.69
Language: English
This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1881. Not illustrated. Excerpt: ... a.--ANATOMY AND PHYSIOLOGY OF THE NERVOUS SYSTEM. The Nerve Cells In The Cerebro-spinal Ganglia And Peripheral Cran1al Gangl1a have been very exhaustively studied by G. Retzius in a recent article in the Archiv f. Anatomic (1880, p. 396). He examined a number of species throughout the entire vertebrate series. While there is nothing startlingly new in his results, the thoroughness of the author renders his descriptions authoritative, and does away with much of the obscurity hitherto prevailing in this subject. He finds that in the spinal ganglia divisions of myelated nerve fibres are a very common occurrence. In batrachia, birds, and mammals the nerve cells of these ganglia present only one process, and this filament, after receiving an investing sheath of myeline and assuming the appearance of an ordinary myelated nerve fibre, joins, probably in all cases, another nerve fibre at a point of constriction forming the T-shaped junction of Ranvier. But this apparent junction is probably really to be considered a division of the myelated cellprocess. Whether one of the resulting branches runs peripherally and the other toward the spinal cord, cannot be decided with present means. It can, likewise, not be decided whether all cellprocesses undergo this division. The jugular and cervical ganglia of the vagus, the jugular and petrosal ganglia of the glosso-pharyngeal, the geniculate ganglia of the facial, and the semilunar ganglia of the trigeminus must rank as true cerebro-spinal ganglia as judged by their structure. The ganglion of the auditory nerve can also be included in this category, though presenting some peculiarities. In the cerebrospinal ganglia even the smallest nerve cells are seen to have processes, which assume the appearance of non-myelated fibres, and ar...

5 different editions

Also available

Also in

General World History

View All