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KATRIN_1 [288]
3 years ago
15

What are the muscles composed of?

Biology
1 answer:
Anestetic [448]3 years ago
6 0
A skeletal muscle<span> fiber is surrounded by a plasma membrane called the sarcolemma, which contains sarcoplasm, the cytoplasm of muscle cells. A muscle fiber is composed of many fibrils, which give the cell its striated appearance.</span>
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