BO VEISLAND, MI&I / SCIENCE PHOTO LIBRARY BO VEISLAND, MI&I / SCIENCE PHOTO LIBRARY
Walking skeleton. Illustration of the side view of a human skeleton, positioned as if it were walking. The human skeleton is composed of 213 bones which provide protection, support and locomotion for the body. The skull (top) protects the brain. The breast bone (sternum) and ribs of the chest (upper centre) protect the heart and lungs. Bones of the spine protect the spinal cord. The pelvis (centre) protects the lower abdominal organs. Long bones provide support and locomotion for the arms and legs.
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