. Anatomy, descriptive and applied. Anatomy. Third ventricle. Central nucleus. A nterior dorsal nucleus. Anterior ventral nucleus. _Posierior ventral nucleus. -Posterior dorsal -Crossed fibres. ^Xucleus of origin of trochlear nerve. Decussation of trocMear nerve. -Trochlear nerve. riG. 666.—Showing the different groups of cells, which constitute, according to Perlia. the nucleus of origin of the oculomotor nerve. (Testut.) molecular ground substance. In a flat-wise section of the brain stem the outline of this nucleus resembles an inverted L or the tip of a boat hook; the axones from
. Anatomy, descriptive and applied. Anatomy. Third ventricle. Central nucleus. A nterior dorsal nucleus. Anterior ventral nucleus. _Posierior ventral nucleus. -Posterior dorsal -Crossed fibres. ^Xucleus of origin of trochlear nerve. Decussation of trocMear nerve. -Trochlear nerve. riG. 666.—Showing the different groups of cells, which constitute, according to Perlia. the nucleus of origin of the oculomotor nerve. (Testut.) molecular ground substance. In a flat-wise section of the brain stem the outline of this nucleus resembles an inverted L or the tip of a boat hook; the axones from the cells of this nucleus (of Edinger and Westphal) supply the Ciliary muscle and Sphincter iridis (pupillary motion). The main nucleus, composed of several sub-groups, lies caudolaterad of the preceding, and is composed of larger cell elements. The root fibre bundles from this nuclear group pass ventrad, breaking through the medial longitudinal fasciculus, separating like the strands of a horse's tail by the interference of the red nucleus, to become gathered into more compact bun- dles between the mesal edge of the substantia nigra and intercrural region, and emerging by eight to twelve fascicles which compose the trunk of the oculomotor Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-1922. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
