II A skeleton cannot move without muscles to work the joints. Human skeletons are internal ones called endoskeletons . The skeleton is a system of bones, ligaments, muscles, tendons and other tissues that are linked together. The structure of the skeleton The different types of body joint Muscles in movement 1. It helps a person move Muscles are attached to this frame.
Muscle is an elastic tissue with a rich blood supply and nerves.
This tissue covers large areas of the body. A joint is made where the two vertebrae meet. The bony nature of the spine protects the delicate spinal central nerve cord. It encases it along its length. The skeleton is made of bone.