5 Questions
What is the diameter range of skeletal muscle fibers?
10 to 80 micrometers
What is the sarcolemma?
The cell membrane of the muscle fiber
What does the sarcolemma consist of?
A true cell membrane and an outer coat
What is contained in the outer coat of the sarcolemma?
Numerous thin collagen fibrils
Which material forms part of the outer coat of the sarcolemma?
Polysaccharide
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
Learn about the characteristics of skeletal muscle fibers, including their diameter range and the composition of the sarcolemma, the muscle fiber cell membrane.
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