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Joints
Structure and Function
To begin with, we distinguish between so-called “real“ and “fake” joints. Unlike “real” joints, which are separated from each other by a joint space, “fake“ joints form an immovable connection between bones and are therefore called synarthroses. Synarthroses have limited mobility. Their purpose is to hold the bones firmly together thus stabilising our skeletons. Synarthrosis joints can be bony, fibrous or cartilaginous. Depending on the type of connecting material, they are referred to as synostoses, synchondroses or syndesmoses. Among the syndesmotic joints, where two bones are connected by elastic or tout connective tissue, are the ligaments supporting the vertebral column. The rib cartilage, connecting ribs and sternum, as well as the intervertebral discs belong to the cartilaginous joints. With the synostotic joints, the connection of the individual bones consists of bone mass. Among them are cranial bones after ossification of the sutures as well as the sacrum with the superior articular processes, the sacral lamina, the lateral part and the sacral apex.
Play trailerCurriculum-centred and oriented towards educational standards
Matching
Rights and Obligations
Three girls of different ages: Anna is 17, Paula 15 and Lena 13. Before the law, their respective ages have consequences – because children and adolescents have different rights and also obligations.
Ceramic
Ceramics are indispensable in our everyday lives. We eat from ceramic plates, drink from ceramic cups, use tiled ceramic bathrooms. But how is ceramic manufactured? The film reveals the secrets of this fascinating material! We get to know more about the beginnings of ceramic in the Old World of Egypt and Mesopotamia, about Greece, China and Rome. We gain interesting insights into the valuable earthenware and are also shown the exquisite further development of the "white gold". Today this versatile material is irreplaceable in industry, too. Whether in space or as an easily compatible substitute in medicine, ceramic is applied in many places.