Muscle

From The School of Biomedical Sciences Wiki
(Difference between revisions)
Jump to: navigation, search
Line 3: Line 3:
 
A skeletal muscle muscle consists of muscle fibres. One muscle fibre is approximatels 100 µm in diameter and consists of several [[Nucleus|nuclei]] and many [[Mitochondria|mitochondria]]. Each muscle fibre contains [[Myofibril|myofibrils]]. These are approximately 1 µm in diameter.<br>  
 
A skeletal muscle muscle consists of muscle fibres. One muscle fibre is approximatels 100 µm in diameter and consists of several [[Nucleus|nuclei]] and many [[Mitochondria|mitochondria]]. Each muscle fibre contains [[Myofibril|myofibrils]]. These are approximately 1 µm in diameter.<br>  
  
The [[Myofibril|myofibril]] is organised in repating units called [[Sacromeres|sacromeres]]. These contain thick and thin filaments. Muscle contraction occurs when the thin filaments slide along the thick filament by hydrolysing [[ATP|ATP]]&nbsp;<ref>Berg J., Tymoczko J and Stryer L. (2001) Biochemistry, 5th edition, New York: WH Freeman.</ref>.  
+
The [[Myofibril|myofibril]] is organised in repating units called [[Sacromeres|sacromeres]]. These contain thick and thin filaments. Muscle contraction occurs when the thin filaments slide along the thick filament by hydrolysing [[ATP|ATP]]&nbsp;<ref>Berg J., Tymoczko J and Stryer L. (2001) Biochemistry, 5th edition, New York: WH Freeman.</ref>&nbsp;by what is known as the [[The Sliding Filament Theory|Sliding Filament Theory]].  
  
 
=== References  ===
 
=== References  ===
  
 
<references />
 
<references />

Revision as of 22:30, 13 December 2010

Skeletal muscle

A skeletal muscle muscle consists of muscle fibres. One muscle fibre is approximatels 100 µm in diameter and consists of several nuclei and many mitochondria. Each muscle fibre contains myofibrils. These are approximately 1 µm in diameter.

The myofibril is organised in repating units called sacromeres. These contain thick and thin filaments. Muscle contraction occurs when the thin filaments slide along the thick filament by hydrolysing ATP [1] by what is known as the Sliding Filament Theory.

References

  1. Berg J., Tymoczko J and Stryer L. (2001) Biochemistry, 5th edition, New York: WH Freeman.
Personal tools
Namespaces
Variants
Actions
Navigation
Toolbox