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. 1902 Excerpt: ...horn, sends out processes to all the muscles of the primitive body segment in which it is situated. The anterior root of a spinal nerve is thus formed. Other motor cells send out processes which reach viscera through the white rami communicantes and sympathetic system (Fig. 128). Fio. 128.--Diagram of the Nerve System ...
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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. 1902 Excerpt: ...horn, sends out processes to all the muscles of the primitive body segment in which it is situated. The anterior root of a spinal nerve is thus formed. Other motor cells send out processes which reach viscera through the white rami communicantes and sympathetic system (Fig. 128). Fio. 128.--Diagram of the Nerve System of the llth Dorsal Segment. Fio. 129.--A diagram showing the derivation of the Parts of the Nerve System of the llth Segment in the Embryo. (2) Besides the anterior horn cells, two other nerve groups become connected with each segment. At the point where the medullary plates are cut off from the epiblast to form the neural canal, a crest, the neural crest, grows out on each side (Fig. 129) composed of the cells which formed the junctional line between medullary plates and epiblast. A group of these neuroblasts grows into each segment and forms the posterior root ganglion. Each neuroblast within the ganglion sends out a process which bifurcates, one branch or fibre growing into the cord and ending in the posterior column and cells of the posterior horn, the other passing to the skin, muscles, etc., of the segment. The posterior nerve root is thus formed by the ingrowing processes of the cells of the posterior root ganglion, and thus the body segment in which the outgrowing processes are distributed is brought into sensory communication with the central nervous system. The anterior and posterior roots unite to form a spinal or segmental nerve. Like the artery it divides into a posterior division for the epaxial part of the segment and an anterior for the ventro-lateral part (Fig. 128) (3) A third group of cells, the sympathetic, is also connected with each segment. The origin of these cells is not yet certain, but most of the evidence goes to sh...
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New. Sewn binding. Cloth over boards. 344 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
