They form the supporting structure of vertebrates – the bones. The film presents the structure and function of bones in numerous animations and graphics. The subdivision of the skeleton into the head, extremities and trunk and the individual number of bones are illustrated in the film and worksheets. Viewers learn that bones are not a static structure, but a constantly renewing tissue, just as they are shown and introduced to the various bones. The risk factors for bone diseases, such as osteoporosis, are shown in a separate chapter of the film. In conjunction with the extensive additional material (classic and interactive worksheets, glossary, test questions, lesson outline), this DVD is ideal for use in the classroom.