health of human being

the skeletal is the framework of the body and usually described in two parts. The axial skeleton comprise the skull, vertebral column, rib cage and strum. The skull forms a protective cells for the brain and sensory organs, with the lower part of the skull giving form to the face.
The appendicular skeleton includes the limb bones of the arm and legs, and the girdles that connect then to the axial skeleton, the shoulder girdle and the pelvic girdle. The bone of the arm (humerus, radios and ulna) and the leg(Femur,tibia and fibula)are all long bones.

Joints
Whenever we move, turn bend or twist, our joints are involved. The point where two bones connect is called joint. Exclusive to the skull are the joints known as sutures, which knit the bones of the skull together to form a stable, immobile joint. Throughout the rest of the body are various mobile joint types; ball and socket, hing gliding ,pivot and saddle joints. varying degrees of mobility are achieved by the various joint offering the greatest range of movement. Some joints, such as those joining at the front of the pelvis,are only slightly movable joint, connected by a layer of cartilage and held firm by fibrous ligaments. The surface of synovial joints are covered with smooth cartilage.