. The American journal of anatomy . *^****^iTfc-^ I. *« Fig 3 Illustration of a fixed and stained specimen of a contracting musclefiber from the lobsters antenna, showing a reversal of striation as regards adeeply staining substance of the Q-disc of the relaxed portion (above) of thefiber (according to Dahlgren and Kepner). .7, light disc; Q, dark disc; Z, telo-phragma; 71/, mesophragma; m, extensions of telophragmata into perinuclearsarcoplasm; , tendon fibrils which attach the muscle to the hypodermis. Fig. 4 Illustration of contraction wave on living leg-muscle fiber of Dy
. The American journal of anatomy . *^****^iTfc-^ I. *« Fig 3 Illustration of a fixed and stained specimen of a contracting musclefiber from the lobsters antenna, showing a reversal of striation as regards adeeply staining substance of the Q-disc of the relaxed portion (above) of thefiber (according to Dahlgren and Kepner). .7, light disc; Q, dark disc; Z, telo-phragma; 71/, mesophragma; m, extensions of telophragmata into perinuclearsarcoplasm; , tendon fibrils which attach the muscle to the hypodermis. Fig. 4 Illustration of contraction wave on living leg-muscle fiber of Dytiscusmarginalis (according to Schaefer). The apparent reversal of striae in theformation of the contraction bands of the middle portion is explained by Schaeferas due to accumulations of sarcoplasm, appearing as dark lines, which obscurethe continuity of the fibrils and by contrast cause the whole of the sarcomeresbetween them to appear light. The writer interprets this illustration as beingin strict accord with the illustrations of fixed and sta
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectanatomy, bookyear1920
