Osteoblast, large cell responsible for the synthesis and mineralization of bone during both initial bone formation and later bone remodeling. Osteoblasts form a closely packed sheet on the surface of the bone, from which cellular processes extend through the developing bone.
Start studying Four types of Bone Cells ... Stem cells that develop from embryonic mesenchymal cells and then give rise to most other bone cell ... Bone-forming cells.
Osteoclasts are formed in the bone marrow from the same stem cells that form all blood cells. Osteoclast formation and activity increase in response to inactivity and low calcium blood levels, which causes bones to become thinner and weaker.
Osteocytes continue to form bone to some degree, which is important for maintaining the strength and health of the bone matrix. However, osteocytes perform functions that extend far beyond simple maintenance. Bone Remodeling & Repair. Osteocytes comprise 95% of the living cells in adult bone.
Stem cells that develop from embryonic mesenchymal cells and then give rise to most other bone cell types. They are found in the endosteum, the inner layer of the periosteum, and in the central canals.