JOHN BAVOSI / SCIENCE PHOTO LIBRARY JOHN BAVOSI / SCIENCE PHOTO LIBRARY
Osteoporosis. Artwork showing the skeleton of a woman affected by osteoporosis (brittle bone disease). The skeleton is seen from behind, with the vertebra of the spine joining the ribcage (upper centre) to the pelvis (lower centre). Cartilage is pink. The bones, especially the vertebra, are pitted and uneven. Osteoporosis is a lack of bone density due to a loss of bone proteins, making them brittle and liable to fracture. Osteoporosis is more common in elderly women as, after the menopause, hormones which help to maintain bone mass are no longer produced.
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