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Myofilaments

myofilaments

The ultramicroscopic threads of filamentous proteins making up myofibrils in striated muscle. Thick ones contain myosin and thin ones actin; thick and thin myofilaments's also occur in smooth muscle fibres but are not regularly arranged in discrete myofibrils and thus do not impart a striated appearance to these cells.


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An interesting essay I need help with

... a nerve to a muscle. Next, explain and draw the detailed structure of a skeletal muscle fiber, including organelles, myofibrils, arrangement of myofilaments, and other proteins. And, how these structures enable a muscle cell to contract. If your dream date refuses to give you mouth-to-mouth ...

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by kimmay818
Fri Oct 08, 2010 5:04 am
 
Forum: Human Biology
Topic: An interesting essay I need help with
Replies: 0
Views: 3808

Re:

... get some extra bonus points.. I think the answer to this (regarding muscle) is that straining the muscles causes myofibers to synthesize more myofilaments, thus increasing cross sectional area of the arm/legs/whatever versus Yoga which is mostly using slow oxidative muscles.. .. I feel I am ...

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by Bioslave
Wed Oct 22, 2008 5:07 am
 
Forum: Cell Biology
Topic: Yoga versus weights
Replies: 2
Views: 1759

The Fiber Disease

... microfilament organization and stability. PMID: 10428484 2000 - Cytochalasin D reduces Ca2+ sensitivity and maximum tension via interactions with myofilaments in skinned rat cardiac myocytes. PMID: 11101650 2000 - Optimal development of Chlamydophila psittaci in L929 fibroblast and BGM epithelial ...

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by Skytroll
Mon Jul 10, 2006 5:53 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5561892


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