31. The osteoblast then deposits calcium phosphate which is hardened by hydroxide and bicarbonate ions. 32. Ethanol suppresses the activity and differentiation of osteoblasts . 33. During STS-80 osteoblast cultures were grown in microgravity, using specialized hardware. 34. Normally, bone removed by osteoclasts is replaced quickly by other cells, the osteoblasts . 35. Osteoblasts then attach themselves to the material and form new bone as the material dissolves.36. Osteocytes remain alive and are connected by cell processes to a surface layer of osteoblasts . 37. Osteoblasts do not have calcitonin receptors and are therefore not directly affected by calcitonin levels.38. Osteoblasts deposit a collagen matrix and release minerals that combine to make the bone mineral.39. Osteoblasts also group to form new bone.40. "' Lining cells "'come from osteoblasts which have become flattened.
