摘要
骨骼一直处于更新状态。骨骼的组成与构造在我们的一生当中都在变化着。这种可变性具有重要的健康暗示，因为许多医疗状况会在生命的不同时期以不同方式影响着骨髂。亍解这些疾病需要对骨骼生理学有一个全面的认识。
Bones are constantly in a state of renewal, Their composition and architecture vary through a lifetime. This mutability has important implications for health, as a number of medical conditions affect bone in different ways at different stages of life. Understanding these diseases requires a broad knowledge of bone physiology.
