Skeletal muscle fibre is a syncytium as the sarcoplasm contains

Skeletal muscle fibers are syncytium, which means they are multinucleated cells. During development, multiple myoblasts (immature muscle cells) fuse together to form a single, large skeletal muscle fiber. As a result of this fusion, the mature skeletal muscle fiber contains many nuclei, rather than having just one nucleus like most other cell types.

The syncytial nature of skeletal muscle fibers is essential for their function. Having multiple nuclei distributed throughout the muscle fiber allows for efficient protein synthesis and repair, as the nuclei can control different regions of the elongated cell. This characteristic contributes to the adaptability and strength of skeletal muscle in response to various physiological demands and exercise.