Skeletal muscle fibers are described as 'syncytium' because:
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Correct answer: The sarcoplasm contains many nuclei
Skeletal muscle fibers are multinucleated because the sarcoplasm contains many nuclei. This multinucleated state is referred to as a syncytium, which results from the fusion of many embryonic myoblasts.
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More Muscle Structure questions
- The storehouse of calcium ions in a muscle fiber is the:
- The light bands of a myofibril contain which protein and are also known by what name?
- The functional unit of contraction in a muscle fiber, located between two successive Z-lines, is called a:
- The 'H-zone' in the skeletal muscle fiber is defined as:
- Which of the following is a complex protein that masks the active binding sites for myosin on the actin filaments in a resting state?
- Each myosin (thick) filament is a polymerized protein made of monomeric units called: