IntroductionThis report will explore the structure and function of skeletal muscle within the human body. There are three classifications of muscle: smooth (looks smooth), cardiac (looks striated), and skeletal (looks striated). Smooth muscle is found within the blood vessels, intestines, and intestines; it helps the movement of substances by contracting and relaxing, this is an involuntary effort. The heart is composed of the cardiac muscle, which contracts rhythmically continuously throughout a person's life and also constitutes an involuntary movement of the body. The main focus of this relationship is the skeletal muscle and movement produced which is inflicted by conscious thought unless there is a potentially harmful stimulus and then the reaction is due to reflex, as the body naturally wants to protect itself. Skeletal muscle sits attached to bones and when they contract and relax they produce movement, there is a specific process that the muscle fibers go through to allow this to happen. Skeletal muscle function in relation to other body systems. Temperature regulation The body has specific ways of controlling internal temperature: if the body is too cold, involuntary shivering occurs which causes the skeletal muscles to contract, producing heat. When conscious movement occurs, the muscles contract and relax again, generating heat to warm the body. Another way the body unconsciously raises its temperature is by causing hairs all over the body to stand on end, causing it to trap a layer of air that acts as an insulator. When the body is too hot, sweat is produced by the pores of the skin, as this liquid deposits on the skin it slowly evaporates causing the body temperature to drop, however if... in the center of the paper... then no definition of the body would exist since the muscles would not have any tension within them. Within skeletal muscle there are extremely small structures that form the muscle and enable contractions and movement (epimysium, perimysium, endomysium, fascicles, fibers, sarcomere, sarcoplasm reticulum, and T tubules). All of these structures play a role in protecting, connecting and transporting substances through the muscle fibers. They are also major contributors to the movement. For muscles to contract, there must be a presence of calcium within the fibers as it connects with the protein troponin and tells tropomyosin to clear binding sites to allow myosin to attach to these sites, which allows movement. muscle contracts and produces movement. Without all of these elements working in sync, skeletal muscle function would no longer function or even exist.