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4 Cards in this Set
- Front
- Back
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Muscles |
Cardiac Muscle: Involuntary, tubular muscles that are striated. They are found only in the heart. They have one nucleus per cell. Smooth Muscle: They are non-striated and sheeted muscles that are found in organs like the esophagus. There are only one nucleus per cell. Skeletal Muscle: They are striated and tube like muscles that have multiple nuclei per cell. They are attached to skeleton via tendons. |
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Myofilaments |
Muscle fibers are made out of myofilaments that are composed of different contractile protein. Actin: Actin are contractile protein that are found in thin myofilaments. Myosin: Myosin are contractile protein that are found in thick myofilaments. Striation: Striation occurs because of the different myofilaments that overlap. Sarcomere: The space created between Z lines. |
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Sarcolemma & Muscle Fibers |
Sarcolemma is the sheath that wraps muscle fibers in a membrane. Muscle fibers are the individual sheeted muscle cells of skeletal muscles. |
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Antagonist Muscles |
A pair of skeletal muscles that work against each other to make a uniform movement. |
