chapter 7 continued Flashcards
osteogenic
- stem cells that can differentiate into other cells
- only ones to undergo cells division
- found anywhere in the bone where there are blood vessels (periosteum, endosteum)
osteoblast
- bone building cells
- help bone harden
- turn into osteocytes
osteocytes
- maintain bone through life
osteoclast
- made up of white blood cells (monocyte)
-around 50 or more
compact bone
- found under periosteum and around diaphysis area
- made of osteons (rods)
spongy bone
- mostly at the end of bones
- made up of trabeculae
- site of red blood cells production
Canuliculi
channel ways for cell communication
Intramebranous ossification
Intramembranous ossification is the process of bone development from fibrous membranes. It is involved in the formation of the flat bones of the skull, the mandible, and the clavicles
-Building matrix
-calcification
-trabeculae forms
-periosteum forms
Endochondral ossification
endochondral ossification. the method used in the formation of most bones, especially long bones. -a process whereby cartilage is replaced by bone. -forms both compact and spongy bone.
-Cartilage model forms and grows
-Chondroblast turn to chondrocytes
-nutrient artiary forms
-medullary cavity forms
-secondary ossification
-Articular cartilage forms