Cranium - Flat bone protecting the brain, Bicep - Muscle in upper arm, Flexion - Decreasing the angle at the joint, Extension - Increasing the angle at the joint, Femur - Longest bone in the body, Ribs - Flat bone protecting the lungs, Vertebrae - 12 of these make up the spine, Pectorals - Chest muscles, Scapula - Shoulder blade, Clavicle - Collar Bone,

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