How is muscle damage normally repaired

How is muscle damage normally repaired. The majority of a muscle is formed from bundles of muscle fibre cells, but muscles also contain many other types of cells, including stem cells. Stem cells are part of the body’s inbuilt repair system. They can generate other types of cells and can also make copies of themselves. Skeletal muscles contain a type of stem cell called satellite cells. When muscle fibres are damaged they send chemical signals to satellite cells telling them to form new muscle fibres or to fuse with existing fibres to repair the damage. At the same time some satellite cells copy themselves to ensure enough stem cells are available to continue to repair and replace muscle fibres in the future