The anatomist's vade mecum : a system of human anatomy . It measures in diameter ^.oooo o^ ^^ mch,and is composed of a succession of cells connected by their flat sur-faces. The cells are filled with a transparent substance, which I havetermed myoline. The myoline differs in density in different cells, andfrom this circumstance bestows a peculiarity of character on certain ofthe cells. For example, when a fibril in its passive state is examined,there will be seen a series of dark oblong bodies separated by lightspaces of equal length; now, the dark bodies are each composed of apair of cells co
The anatomist's vade mecum : a system of human anatomy . It measures in diameter ^.oooo o^ ^^ mch,and is composed of a succession of cells connected by their flat sur-faces. The cells are filled with a transparent substance, which I havetermed myoline. The myoline differs in density in different cells, andfrom this circumstance bestows a peculiarity of character on certain ofthe cells. For example, when a fibril in its passive state is examined,there will be seen a series of dark oblong bodies separated by lightspaces of equal length; now, the dark bodies are each composed of apair of cells containing the densest form of myoline, and are hence * Mass of ultimate fibres from the pectoralis major of the Imman foetus, atnine months. These fibres have been immersed in a solution of tartaric acid,and their numerous corpuscles, turned in vai-ious directions, some presentingnucleoli, are shown. Fiom Mr. Bowmans paper. t These were made on dissections of fresh human muscle, prepared for meby Mr. Lealand, partner of the eminent optician, Mr. STEUCTURE OF MUSCLE. 163 Fig. i i i 1 i B i highly refractive, while the transparent spaces are constituted by apair of cells containing a more fluid myoline. When the fibrils arecollected together so as to form an ulti-mate fibre or fasciculus, the appearanceof the cell is altered: those which lookdark in the single fibril, that is, themost refractive, being ranged side byside, constitute the bright baud; whilethe transparent cells of the single fibrilare the shaded strise of the fibre. When the ultimate fibril is verymuch stretched, the two highly refrac-tive cells appear each to be double;while the transparent space is evidentlycomposed of fom cells. The ultimate fibre of organic life[fig. 83, D, e] is a simple homogeneousfilament, much smaller than the fibre ofanimal Hfe, flat, and without transversemarkings. Besides these characters,there may generally be seen a dark line or several dark points in itsinterior, and not unfre
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
