There are many different parts of skeletal muscles that are important to the function of the muscles. Each muscle is made up of a lot of muscle fibers. Each muscle fiber has a thin coating covering the fiber called the sarcolemma. The muscle fibers also have a cytoplasmic type substance called sarcoplasm. Sarcoplasm contains large amount of glycosomes and myoglobin. Myoglobin is a protein that stores oxygen inside the muscle fibers. The muscle fibers contain striations that are made up of different bands. These bands are called A and I bands. The dark parts of the striations and the lighter parts of the fiber are the I bands. In between each A band there is a zone called the H zone. This H zone is then divided by what is called M line. The
