Elements of histology (1898) Elements of histology elementsofhistol00klei Year: 1898 plasm present in the layer containing the bridge; and since the sarcoplasm is more transparent than either the sarcous elements or the fibrilla^ the nmscnlar libre as a whole shows a con- s p i c u o u s transparent layer or disc between each layer of the dark granules and each layer of the sarcous elements. This causes the transverse striation. The layer of the dark granules corresponds to tlie line of Dohie, or the line of Amici, or the inter- mediate disc of Engelmann, or the yneinhrane of Krause. The laye
Elements of histology (1898) Elements of histology elementsofhistol00klei Year: 1898 plasm present in the layer containing the bridge; and since the sarcoplasm is more transparent than either the sarcous elements or the fibrilla^ the nmscnlar libre as a whole shows a con- s p i c u o u s transparent layer or disc between each layer of the dark granules and each layer of the sarcous elements. This causes the transverse striation. The layer of the dark granules corresponds to tlie line of Dohie, or the line of Amici, or the inter- mediate disc of Engelmann, or the yneinhrane of Krause. The layer or disc of sarcoplasm in which the bridges are placed, which join the sarcous elements to the granules of the intermediate disc, is the lateral disc. The layer or disc of sarcous elements corre- sponds to the transverse disc. In many muscular fibres of insects, notably in those of the crab (Ruther- ford), there occurs in each fibrilla witliin the lateral disc a short rod-like thickening midway between the sarcous element and the dark granule ; the layer or E Fis. 05.—Striped Muscular Fibres of the Water Beetle (Hydropliilns). {Atlas.) Sarcoleiuraa; b, Krause's menibrane. The sarcous eliiiient^; are well seen. In a the oblong nuclei of tlie muscle corpuscles nre shown. In b the sarco- lennua has become unnaturally raised from the mus- cular contents. The contractile discs are M^ell shown : so also are the sarcons elements.
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