Leg bone: © MedicalRF.com / ​ age fotostock; close - up: © Alfred Pasieka / ​ Photo Researchers, Inc.; gymnast: Cultura RF / ​ Punchstock
Коски на ногата: © MedicalRF.com / age fotostock; гро - план: © Alfred Pasieka / Photo Researchers, Inc.; гимнастичар: Cultura RF / Punchstock