Osteoblasts and osteoclasts are effector cells.Bone mechanical integrity is maintained by a dynamic balance between bone resorption by osteoclasts and bone formation by osteoblasts.

• 成骨细胞、破骨细胞为力学效应细胞，使骨形成和骨吸收处于动态平衡以维持骨力学稳定性。