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Several different types of bones are found based on their shapes: long bones, short bones, irregular bones and flat bones.A long bone has a ( 1 ) ( 骨干 ) composed of compact bone tissue, like the ( 2 ) ( 股骨 ) and the ( 3 ) ( 肱骨 ). Short bones are designated as wide as they are long. Examples are the ( 4 ) ( 腕骨 ). and the ( 5 ) ( 跗骨 ). Irregular bones received their name because their shapes are irregular.