Chapter 9 Section 3: Muscle Fiber Microanatomy and Sliding Filament Model
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18 Terms
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What is present in the H zone?
Myosin only
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What is present in the I band?
Actin only
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What is present in the A band?
Myosin and Actin
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Which band is the Z disc in?
I band
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Name the parts of a muscle from largest to smallest
Muscle
Fascicle
Muscle fiber
Myofibril
Sarcomere
Myofilament
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Which myofilament has heads on it?
Myosin
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Which myofilament looks like beads?
ActinW
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Why does myosin have heads?
Binding site for ATP and actin
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What is actin anchored to?
Z disc
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What does tropomyosin do?
Covers the binding sites for myosin on the actin
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Note 
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