Osteoblasts
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Musculoskeletal
- Osteoblasts
- Osteoclasts
- Osteocytes
- Spongy Bone
- Compact Bone
- Bone Structure
- Cartilage
- Joints
- Type 1 vs. Type 2 Muscle Fibers
Summary
Osteoblasts are a type of cell that builds new bone tissue. They do this by secreting a matrix of compounds, mostly consisting of the protein collagen. This matrix, also known as the osteoid, can then mineralize with calcium to form strong and dense tissue.
Key Points
- Osteoblasts
- Form new bone by secreting collagen and inorganic compounds that serve as foundation/matrix for bone formation (osteoid)
- Osteoid later mineralizes with calcium in the form of hydroxyapatite to form hard bone
- Consume calcium to mineralize bone
- Form new bone by secreting collagen and inorganic compounds that serve as foundation/matrix for bone formation (osteoid)