Nervous and mental diseases . Fig. 126.—1, Section of the cord showing division into three arteria] districts (diagrammatic). Partsupplied only by the anterior median and its branches is shaded with parallel lines. Part supplied onlyby the peripheral arteries is shaded with dots. Part supplied by both systems of arteries is , Transverse section of cord showing distribution of anterior and posterior arteries (modified afterMarie). Part supplied by posterior arterial system shaded with dots. Part supplied by anterior systemunshaded (Williamson). AS. Fig. 127.—Arteries of the spinal cor
Nervous and mental diseases . Fig. 126.—1, Section of the cord showing division into three arteria] districts (diagrammatic). Partsupplied only by the anterior median and its branches is shaded with parallel lines. Part supplied onlyby the peripheral arteries is shaded with dots. Part supplied by both systems of arteries is , Transverse section of cord showing distribution of anterior and posterior arteries (modified afterMarie). Part supplied by posterior arterial system shaded with dots. Part supplied by anterior systemunshaded (Williamson). AS. Fig. 127.—Arteries of the spinal cord. A S, Anterior spinal; A M, anterior median; cc, commis-sural ; a a, anastomotic; a c, anterior central; p, posterior central; a r, anterior root arteries ; a I, anteriorlateral; m I, median lateral; p I, posterior lateral; p r, posterior root artery; p c, posterior cornual; p i,intermediate septal; pm, posterior median (modified after Obersteiner). LOCALIZATION. 343 vertical direction communicating with the next similar artery, and forminga longitudinal chain in the gray matter (Fig. 128). The anterior spinalartery, from its lateral ramifications on the surface of the cord, also sup-plies the white matter in the periphery of the ventral half of the cord. The posterior arterial system of the cord supplies its dorsal two posterior spinal arteries arise separately from the vertebralsand, coursing around the medulla, extend the entire length of thecord just outside the posterior nerve-roots. Like the anterior spinalartery, they receive num
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Keywords: ., bookcentury1900, bookdecade1910, bookid, booksubjectnervoussystem
