BSIP ESTIOT / SCIENCE PHOTO LIBRARY BSIP ESTIOT / SCIENCE PHOTO LIBRARY
Bone fractures. Artwork showing four different types of bone fracture. At far left is a transverse fracture, which usually results from a sharp blow, or prolonged exposure of the bone to stress. Centre left shows a comminuted fracture in which the bone has shattered into many pieces. This type is usually only caused by severe direct force. At centre right, the bone has sheared diagonally, which could lead to a compound fracture, where the bone protrudes through the skin. This can lead to infection. At far right is a greenstick fracture, where the bone has snapped, but one side remains intact. All fractures are reset into position and the bone heals naturally.
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