Histochemistry of interafusal muscle fibers outside the spindle capsule
β 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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β¦ 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.
π SIMILAR VOLUMES
Distributions of motor axons to different types of intrafusal fiber were reconstructed from serial 1-micron thick transverse sections of six poles of muscle spindle in the rat soleus. Motor axons innervated (dynamic) bag1 fibers, or (static) bag2 fibers in conjunction with chain fibers. However, app
## 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