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Questions and Answers
What is the diameter range of skeletal muscle fibers?
What is the diameter range of skeletal muscle fibers?
- 10 to 80 micrometers (correct)
- 5 to 50 micrometers
- 1 to 10 micrometers
- 50 to 100 micrometers
What is the sarcolemma?
What is the sarcolemma?
- The cytoplasm of a muscle fiber
- A type of muscle protein
- A muscle filament
- The cell membrane of the muscle fiber (correct)
What does the sarcolemma consist of?
What does the sarcolemma consist of?
- Collagen fibrils only
- Only polysaccharide material
- Only the plasma membrane
- A true cell membrane and an outer coat (correct)
What is contained in the outer coat of the sarcolemma?
What is contained in the outer coat of the sarcolemma?
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Which material forms part of the outer coat of the sarcolemma?
Which material forms part of the outer coat of the sarcolemma?
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Study Notes
Skeletal Muscle Fibers
- Skeletal muscle fibers range in diameter from 10 to 80 micrometers
Sarcolemma
- The sarcolemma is the cell membrane of the muscle fiber
- The sarcolemma consists of two components: a true cell membrane (plasma membrane) and an outer coat
- The outer coat is made up of a thin layer of polysaccharide material
- The outer coat contains numerous thin collagen fibrils
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