Quain's elements of anatomy . Fig. 174.—Nerve-ending in mxjsctjlae fibre of a lizard (Lacerta viridis),ACCORDING TO KuHNE. (Higlily magnified.)a, end-plate seen edgeways ; b, from the surface, s, s, sarcolemma ; 77, p, expansionof axis-cylinder. In b the expansion of the axis-cylinder appears as a clear networkbranching from tlie divisions of the medullated fibre. individual fibres, while still associated in small bundles, undergo divi-sion (fig. 159), and at length single dark-bordered fibres pass off to themuscular fibres. These nerve-fibres on approaching or reaching a mus-cular fibre often
Quain's elements of anatomy . Fig. 174.—Nerve-ending in mxjsctjlae fibre of a lizard (Lacerta viridis),ACCORDING TO KuHNE. (Higlily magnified.)a, end-plate seen edgeways ; b, from the surface, s, s, sarcolemma ; 77, p, expansionof axis-cylinder. In b the expansion of the axis-cylinder appears as a clear networkbranching from tlie divisions of the medullated fibre. individual fibres, while still associated in small bundles, undergo divi-sion (fig. 159), and at length single dark-bordered fibres pass off to themuscular fibres. These nerve-fibres on approaching or reaching a mus-cular fibre often divide still further. The branches retain their medul-lary sheath until they reach the sarcolemma, when the white substanceabruptly terminates, while the primitive sheath becomes continuous with 176 NERVOUS SYSTEM. the sarcolemma (Kiihne, fig. 174, s). Ranvier states, however, that it isa prolongation of the nucleated sheath of Henle, and not the primi-tive sheath which is continuous with the sarcolemma. The axis-cylinder
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy