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Histochemistry of interafusal muscle fibers outside the spindle capsule

✍ Scribed by Kucera, Jan


Book ID
101433015
Publisher
Wiley (John Wiley & Sons)
Year
1977
Tongue
English
Weight
311 KB
Volume
148
Category
Article
ISSN
0002-9106

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✦ Synopsis


Abstract

Regional differences in histochemical properties along the length of rat intrafusal muscle fibers were examined. Outside the muscle spindle capsule the nuclear bag fibers lose their hitherto characteristic ATPase activity and stain in a manner similar to that of extrafusal type I muscle fibers, perhaps in relationship to spindle skeletofusimotor innervation.


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## Abstract The development of muscle spindles was studied using the tenuissimus muscle of the cat. Observations show that the intrafusal muscle fibers develop as two separate groups: one group represented by a single nuclear bag fiber while the second group comprises the second nuclear bag fiber i