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Mature cells, develop from osteoblasts, control day-to-day activities (each occupies a lacuna, a pocket sandwiched between layers of matrix
remodeling: when blood calcium level is low, these cells break down bone to release calcium and phosphorous
Bone Lining Cells
made from osteoblasts along the surface of most bones in adults, regulates the movement of calcium and phosphate into and out of the bone
most common, tips of bones at joints, soft part of the nose, supporting rings of the trachea. Prominent in early development
matrix packed with elastic fibers, making it more flexible. found in external ear and epiglottis of larynx
few lacunae and chondrocytes. matrix packed with collagen fibers. found in the intervertebral disks, knee menisci and pubic symphisys
Tough, tight-fitting membrane that coves a bone's surface and contains blood vessels that transport nutrients into the bone
means "little lake," small pockets situated between lamellae containing osteocytes of compact bone.
small canals radiating in all directions from launae, allowing for communication between osteocytes
abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium
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