n.
Structure connecting two or more bones .
Most joints, including synovial (fluid-containing) joints and those between vertebrae, which incorporate a disk, can move. Immovable joints include the sutures of the skull (see fontanel ). Ligaments connect the bones of a joint, but muscles keep them in place. Joint disorders include various forms of arthritis , injuries (e.g., sprains, fractures , and dislocations ), congenital disorders , and vitamin deficiencies.