Muscle fibers quiz
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Last updated 4:19 AM on 1/20/25
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11 Terms
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Muscle fiber
What is a muscle cell called
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Sarcolemma
The plasma membrane of muscle fibers
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Myofibrils
Long fibers alternating dark and light bands
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I bands (light bands)
Location of thin filaments (actin) in sarcomere
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Dark band (A band)
Location of thick fillaments (myosin)
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Sarcomeres
Connective units of a muscle
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Myofilaments
Threadlike proteins within the muscle fiber, 2 types: actin and myosin
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Actin
Thin filament in light bands
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Myosin
Bundled thick bands, projects myosin heads
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Cross bridge
Link between the myosin heads and actin meat
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Sarcoplasmic reticulum
Fiber cell organelle,stores calcium and releases ir
Note 
Flashcards (24)