ANATOMY

Detailed explanation-1: -The skeleton Spine – cervical, thoracic and lumbar vertebrae, sacrum and tailbone (coccyx) Chest – ribs and breastbone (sternum) Arms – shoulder blade (scapula), collar bone (clavicle), humerus, radius and ulna. Hands – wrist bones (carpals), metacarpals and phalanges.

Detailed explanation-2: -Hinge joints allow movement in one direction, as seen in the knees and elbows. Pivot joints allow a rotating or twisting motion, like that of the head moving from side to side. Ball-and-socket joints allow the greatest freedom of movement.

Detailed explanation-3: -1. Joint which allows movement in all directions. 2. Hard structure that forms the skeleton.

Detailed explanation-4: -Bone provides shape and support for the body, as well as protection for some organs. Bone also serves as a storage site for minerals and provides the medium-marrow-for the development and storage of blood cells.