Regional differences in the contractile apparatus of intrafusal muscle fibers
作者:
Herbert Yellin,
期刊:
American Journal of Anatomy
(WILEY Available online 1974)
卷期:
Volume 139,
issue 1
页码: 147-152
ISSN:0002-9106
年代: 1974
DOI:10.1002/aja.1001390111
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractIn spindles of rat muscles, the particular class of intrafusal fiber that is unreactive over its entire striated length when incubated for alkali‐stable “myofibrillar” ATPase, exhibits pronounced regional differences in staining following incubation for acid‐stable ATPase. This variation along the contractile polar regions of the fiber can easily lead to misinterpretations of intrafusal fiber type, as well as the erroneous suggestion of two distinct populations of muscle spindles. Furthermore, such regional staining differences are strongly suggestive of variations in the contractile apparatus along certain intrafusal muscle
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