| Line 16: |
Line 16: |
| | ***Thin filament, containing '''Actin''', located centrally | | ***Thin filament, containing '''Actin''', located centrally |
| | ***Thick filament, containing '''Myosin''', originating from either side of each Z-disc | | ***Thick filament, containing '''Myosin''', originating from either side of each Z-disc |
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| − | *Skeletal muscle includes muscles of:
| |
| − | **Posture
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| − | **Movement
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| − | **Respiration
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| | *Two basic types of skeletal myofibre: | | *Two basic types of skeletal myofibre: |
| − | **<u>'''Type I'''</u> | + | **<u>'''Primary: Oxidative'''</u> |
| | ***Grossly '''red''' | | ***Grossly '''red''' |
| | ***'''High''' myoglobin level | | ***'''High''' myoglobin level |
| | ***'''Slow''' rate of contraction | | ***'''Slow''' rate of contraction |
| | ***High '''oxidative''' activity | | ***High '''oxidative''' activity |
| − | ***Function - postural | + | ***Function - postural, sustained activity |
| − | **<u>'''Type II'''</u> | + | **<u>'''Secondary: Glycolytic'''</u> |
| | ***Grossly '''white''' | | ***Grossly '''white''' |
| | ***'''Low''' myoglobin level | | ***'''Low''' myoglobin level |
| | ***'''Fast''' rate of contraction | | ***'''Fast''' rate of contraction |
| | ***High '''glycolytic''' activity | | ***High '''glycolytic''' activity |
| − | ***Function - exercise | + | ***Function - exercise, bursts of activity |
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| | ==Tendon== | | ==Tendon== |