Musculature is a set of skeletal muscles of a person or animal, the main active part of the musculoskeletal system (performs the functions of movement), functioning thanks to energy exchange processes. There are skeletal muscles (a set of striated muscles - “drawn muscles”) and smooth muscles (“all organs move”), consisting of non-muscle cells that can contract. Muscles are divided into superficial. Tendons extend from the internal organs of the muscles. The motor nerve is responsible for muscle contraction.