MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph of the head of a human femur (thigh bone), showing various degrees of damage to the surface caused by rheumatoid arthritis. The cartilage which covers the head of the bone is severely eaten away with only patches of normal, smooth surface remaining. The bone was removed at a hip joint replacement operation. Magnification: x55 at 6x4.5cm size.
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