LAB - Bone Flashcards
1
Q
bone is composed of;
A
- cells: osteoblasts (synthesizes), -clasts (resorbs), -cytes (maintains bone matrix)
- matrix: fibers, collagen, ground substance (acidic aminoglycans
- minerals: calcium hydroxyapatite
2
Q
this gives bone its characteristic resilience and hardness
A
association of calcium hydroxyapatite with collagen fibers
3
Q
both primary and secondary bone have same structural elements but in mature bone…
A
the collagen fibers are organized into bone lamellas (plates)
4
Q
lamellar bone classification
A
- dense or compact
- spongy or cancellous
- BOTH have sane histologic structure, but in cancellous bone, there are cavities within the tissue**
5
Q
two types of bone marrow
A
red and yellow
