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What are the functions of bones?
Support
Movement
Protection
Mineral Storage
Blood cell formation and energy storage
What type of tissue is bone?
Bone is a connective tissue
All bone connective tissue has:
Extracellular matrix (fibers, ground substance)
Collagen fibers: flexible
Calcium phosphate salts: hard
Bone cells consist of:
Osteogenic cells
Osteoblasts
Osteocytes
Osteoclast
Osteognic Cells
Stem cell, produce osteoblast
Osteoblasts
Immature, produce new bone
Osteocytes
Mature, maintain matrix
Osteoclast
Break down bone
Bone can be classified by:
Shape
What are the shapes of bones?
Long (ex: humerus)
Short (ex: sternum)
Flat (ex: talus)
Irregular (ex: vertebra)
