scholarly journals Positioning nuclei within the cytoplasm of striated muscle fiber

Nucleus ◽  
2013 ◽  
Vol 4 (1) ◽  
pp. 18-22 ◽  
Author(s):  
Talila Volk
Keyword(s):  
Muscle Fiber ◽  
Striated Muscle ◽  
Striated Muscle Fiber

scholarly journals STRUCTURE OF LIMULUS STRIATED MUSCLE

1973 ◽  
Vol 58 (3) ◽  
pp. 574-593 ◽  
Author(s):  
Maynard M. Dewey ◽  
Rhea J. C. Levine ◽  
David E. Colflesh
Keyword(s):  
Muscle Fiber ◽  
Conformational Changes ◽  
Cross Sections ◽  
Striated Muscle ◽  
Limulus Polyphemus ◽  
Thick Filaments ◽  
Apparent Decrease ◽  
Ventral Muscle ◽  
Striated Muscle Fiber

The musculature of the telson of Limulus polyphemus L. consists of three dorsal muscles: the medial and lateral telson levators and the telson abductor, and one large ventral muscle; the telson depressor, which has three major divisions: the dorsal, medioventral, and lateroventral heads. The telson muscles are composed of one type of striated muscle fiber, which has irregularly shaped myofibrils. The sarcomeres are long, with discrete A and I and discontinuous Z bands. M lines are not present. H zones can be identified easily, only in thick (1.0 µm) longitudinal sections or thin cross sections. In lengthened fibers, the Z bands are irregular and the A bands appear very long due to misalignment of constituent thick filaments. As the sarcomeres shorten, the Z lines straighten somewhat and the thick filaments become more aligned within the A band, leading to apparent decrease in A band length. Further A band shortening, seen at sarcomere lengths below 7.4 µm may be a function of conformational changes of the thick filaments, possibly brought about by alterations in the ordering of their paramyosin cores.

Mechanism of Supercontraction in a Striated Muscle Fiber

Science ◽  
1963 ◽  
Vol 141 (3582) ◽  
pp. 712-713 ◽  
Author(s):  
G. Hoyle ◽  
J. H. McAlear
Keyword(s):  
Muscle Fiber ◽  
Striated Muscle ◽  
Striated Muscle Fiber

scholarly journals Striated muscle fiber apoptosis after experimental tendon lesion in a rat model

2012 ◽  
Vol 221 (4) ◽  
pp. 358-363 ◽  
Author(s):  
Carla Palumbo ◽  
Claudio Rovesta ◽  
Marzia Ferretti
Keyword(s):  
Muscle Fiber ◽  
Rat Model ◽  
Striated Muscle ◽  
Tendon Lesion ◽  
Striated Muscle Fiber
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