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8
Slow Fibers = red fiber = slow twitch (6)
- ½ diameter of fast
- 3X longer to reach peak tension
- More mitochondria, less glycogen
- Specialized to contract for extended periods, slow to fatigue
- Surrounded by extensive capillaries: O2
- Contain red pigment: myoglobin
- Related to hemoglobin
- Binds oxygen
- 3X longer to reach peak tension
- More mitochondria, less glycogen
- Specialized to contract for extended periods, slow to fatigue
- Surrounded by extensive capillaries: O2
- Contain red pigment: myoglobin
- Related to hemoglobin
- Binds oxygen
