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Unformatted text preview: Fast twitch muscle (White Meat) a) Low levels of myoglobin b) Considerable amount of oxygen whenever necessary. c) Relatively low amount of mitochondria d) Low blood supply. e) Appropriate for short-term duration activity 2) Slow twitch muscle (Red Meat) a) High levels of myoglobin b) Considerable amount of oxygen whenever necessary. c) Relatively high amount of mitochondria d) Rich blood supply. e) Appropriate for long-duration activity-Sarcomere = Each repeating unit of muscle; basic contractile unit of muscle 1) Found in striated muscles (cardiac muscle & skeletal muscle) 2) Consist of thick filament (myosin) and thin filament (actin) 3) M line = Consists of thick filament only; refers to the center of sarcomere 4) Z line = Consists of thin filament only; refers to the edges of sarcomere...
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- Fall '11
- Muscle Tissues Muscle