Difference between revisions of "Muscles - Anatomy & Physiology"
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*Each muscle is composed of multiple '''fascicles''' | *Each muscle is composed of multiple '''fascicles''' | ||
**Each fascicle is composed of multiple polygonal '''myofibres''' | **Each fascicle is composed of multiple polygonal '''myofibres''' | ||
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Revision as of 11:11, 18 July 2008
Introduction
- Skeletal muscle includes muscles of:
- Posture
- Movement
- Respiration
- Two basic types of skeletal myofibre:
- Type I
- Grossly red
- High myoglobin level
- Slow rate of contraction
- High oxidative activity
- Function - postural
- Type II
- Grossly white
- Low myoglobin level
- Fast rate of contraction
- High glycolytic activity
- Function - exercise
- Type I
- Each muscle is composed of multiple fascicles
- Each fascicle is composed of multiple polygonal myofibres