Skeletal muscles are a type of muscle tissue that is attached to bones and helps us move our bodies. They are called "skeletal" because they are connected to the skeleton, which is the framework of bones in our body. These muscles are under our control, meaning we can decide when to use them, like when we walk, run, or lift something. These muscles are made up of long, thin cells that can contract and relax. When a nerve sends a signal to a skeletal muscle, it contracts, allowing us to perform various movements. This is why skeletal muscles are essential for everyday activities and physical exercise.