Indeed, they report, FSH stimulates receptors found on the surfaceofbone-degrading osteoclasts and their precursors, leading to the bone cells' formation and function.
事实上，FSH刺激破骨细胞和破骨细胞前体细胞表面的受体，促进骨细胞产生及发挥功能。
2
Stress fractures, or tiny cracks in the surfaceof a bone, are serious running injuries that requires immediate treatment.
应力性骨折，或者在骨头表面上的微小裂缝，是严重的跑步受伤，并且需要立即治疗。
3
Brought about by the constant pressure of lying on a stationary surface, painful ulcers can involve substantial skin loss, sometimes exposing muscle and even bone.