Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Introduction :
Skeletal muscles are composed of elongated, narrow, cylindrical fibres called muscles fibres. These fibres are unbranched and their ends are blunt. Each skeletal muscle is syncytial or multinucleated with characteristic cross striations. The plasma membrane covering the fibre is called sarcolemma whereas their cytoplasm is called sarcoplasm. Sarcoplasm of each muscle fibre consists of long, proteinaceous fibrils called myofibrils.
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