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Skeletal myocyte
Make it clearer
A skeletal myocyte is the fiber that makes up the muscle moving the skeleton. It is a very long cell with several nuclei and a striped pattern. Picture a thick rope built from many inner strands aligned with precision.
Those strands are myofibrils, divided into repeating units called sarcomeres. Inside each sarcomere, actin and myosin slide past each other to generate force. Thousands of units working together shorten the fiber and produce movement.
In brief
A skeletal myocyte, also called a muscle fiber, is a long, striated cell with multiple nuclei that forms skeletal muscle. Its nuclei usually lie near the outer edge of the fiber.
Inside are myofibrils organized into sarcomeres, repeating units where actin and myosin filaments generate force by sliding past one another. The orderly repetition of sarcomeres creates the striations and allows the cell to shorten the muscle.
Sources (2)
- National Center for Biotechnology InformationPhysiology, Skeletal Muscle
- National Center for Biotechnology InformationPhysiology, Skeletal Muscle Contraction
This page explains the topic in general terms; it does not tell anyone what treatment to follow.
Updated