The muscular system consists of the body’s MUSCLES . The muscular system works closely with the SKELETAL system to allow the body to move. Other jobs of the muscular system include keeping the body warm and providing it with shape. There are 3 types of muscle tissue: 1. Skeletal muscle is the type of muscle tissue that connects to the BONES. Most skeletal muscles are under VOLUNTARY control, which means you make a conscious decision to use these muscle, like when you pick up your pencil or throw a ball. Skeletal muscles look striped because they have bands called STRIATION. 2. Smooth muscle is a type of muscle that is not under conscious control, also called INVOLUNTARY control. The stomach and walls of veins are examples of smooth muscle. 3. Cardiac muscle makes up the HEART and is the only kind of muscle found there. Cardiac muscles are STRIATED like skeletal muscles. They are also not under voluntary control, like skeletal muscles. Skeletal muscles are attached to bones of the skeleton by strips of connective tissues called TENDONS. Muscles are attached to bones in opposing pairs. This means that when one muscle contracts (tightens) and it pulls the bone in one direction, the paired muscle RELAXES. When the bone needs to go back to its original position, the second muscle CONTRACTS pulling the bone in the opposite direction while the other muscle relaxes.