The anatomy of the nervous system, from the standpoint of development and function . igs. 95, 96). These are known as the nucleus gracilis and nucleus cu-neatus. They cause a considerable increase in the size of the posterior funiculiand a corresponding ventrolateral displacement of the posterior columns ofgray matter. The fibers of the posterior funiculi end in these nuclei about cells,the axons of which run ventromedially as the axis-cylinders of internal arcuatefibers. These sweep in broad curves through the gray substance, and decus-sate ventral to the central canal in what is known as the
The anatomy of the nervous system, from the standpoint of development and function . igs. 95, 96). These are known as the nucleus gracilis and nucleus cu-neatus. They cause a considerable increase in the size of the posterior funiculiand a corresponding ventrolateral displacement of the posterior columns ofgray matter. The fibers of the posterior funiculi end in these nuclei about cells,the axons of which run ventromedially as the axis-cylinders of internal arcuatefibers. These sweep in broad curves through the gray substance, and decus-sate ventral to the central canal in what is known as the decussation of the mediallemniscus. After crossing the median plane they turn rostrally between the TI1K STRUCT! RE OF llli: Ml in \ OBLONGA1 \ pyramids and the central gray matter to form on either side of the median plain- a broad hand of fibers known as the medial leninism I ; 96 7 Fascu ii/hs gracilis-I ast iculus cuneatusDorsolateral fascA Lissauer) ^Substantia gelatinosaDorsal column Lateral corticospinal tract ( < ntral canalVentral columnVentral corticospinal trad.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectnervoussystem, bookye
