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Bone & Cartilage Development - Anatomy & Physiology (view source)
Revision as of 14:31, 6 January 2011
, 14:31, 6 January 2011no edit summary
==Introduction==
==Introduction==
The '''periosteum''' lines the outer surface of the diaphysis of the bone. It has a cellular inner layer, consisting of osteoblasts, and a fibrous outer layer. The '''endosteum''' lines the inner surface of the diaphysis of the bone. It contains osteoblasts ''and'' osteoclasts. Bone growth occurs by a shift in the equilibrium between osteoblasts and osteoclasts. Osteoblasts on the outside in the periosteum add bone to increase the bone's diameter. Osteoclasts on the inside in the endosteum remove this bone to maintain the bone diameter. When osteoclasts start removing less bone, or osteoblasts start adding more bone, the girth increases.
The '''periosteum''' lines the outer surface of the diaphysis of the bone. It has a cellular inner layer, consisting of osteoblasts, and a fibrous outer layer. The '''endosteum''' lines the inner surface of the diaphysis of the bone. It contains osteoblasts ''and'' osteoclasts. Bone growth occurs by a shift in the equilibrium between osteoblasts and osteoclasts. Osteoblasts on the outside in the periosteum add bone to increase the bone's diameter. Osteoclasts on the inside in the endosteum remove this bone to maintain the bone diameter. When osteoclasts start removing less bone, or osteoblasts start adding more bone, the girth increases.
[[Category:Developmental Biology]][[Category:Bone and Cartilage - Anatomy & Physiology]]
[[Category:Developmental Biology]][[Category:Bone and Cartilage - Anatomy & Physiology]]