Function: Movement and aids digestion. Parts: Cardiac muscles, skeleton muscles, smooth muscles, tendon. Functions of parts: Tendon: move bone of skeletal system, Smooth:maintain blood pressure and flow, Cardiac: delivers oxygen, nutrients, hormones, and other important substances to the body, Skeletal:gives the body its shape, allows movement, makes blood cells, provides protection and stores minerals. The muscular system also goes with the skeletal system because the skeletal system protects this system and also connects to this system with the tendons. It also goes with any system with muscles because all the systems with muscles have these different types of muscles, such as the digestive, nervous, circulatory, etc.