cross sections: midshaft of the femur of an 84-year-old female with advanced osteoporosis, compared to a healthy femur of a 17-year-old female
Images courtesy of: Smithsonian National Museum of Natural History

These cross sections show the midshaft of the femur of an 84-year-old female with advanced osteoporosis (right), compared to a healthy femur of a 17-year-old female (left).