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osteoblasts large, granular cells, can't undergo mitosis, found on surface of bone form bone, secrete the osteoid: collagen, proteoglycans, glycoproteins. Osteoblast are cuboidal mononuclear bone cells 15-30 Âµm in length, which form a contiguous monolayer over the surface of bone. They are derived from marrow stromal cells by differentiation of pre-osteoblasts and not themselves undergo mitosis.
Osteoblasts vs Osteoclasts. The skeletal system is basically made up bones. Bone tissue is considered as a hard but resilient tissue that is unique to vertebrates. The main functions of bones are to protect internal organs and to provide rigid support for muscle attachment. Osteoblasts promote the formation of bones while osteoclasts promote the bone breakdown. â¢ Osteoblasts become osteocytes, whereas osteoclasts do not. â¢ Osteoblasts are smaller and mononucleate, whereas osteoclasts are larger and multinucleate. Related posts: