Introduction to Bone CHEMICAL COMPOSITION Organic Components notes Flashcards
1
Q
35% of extracellular matrix
A
Osteoid
2
Q
What does organic mean?
A
Living
3
Q
Osteoid
A
- Made of proteglycan and collagen fibers
* Gives flexiability to the bone to resist bending forces(stress)
4
Q
Types of bone cells
A
osteoblasts
osteocytes
osteoclasts
5
Q
Osteoblasts
A
Create bone (make osteoid) Becomes/matures into osteocyte
6
Q
Osteocytes
A
Cannot create bone bit maintain existing bone by sending nutrients to each other using “arms” (arms are called dendritic extensions)
7
Q
Osteoclasts
A
Dissolve/breakdown bone similar to macrophages
Release acid and enzymes (to dissolve bones)
