Ossification

Question 1

Intramembranous ossification

Answer 1

1. ossification center forms
2. Woven bone and periosteum forms
3. Bone matrix is secreted
4. bone collar of compact bone forms and red marrow apperas

Question 2

Endochondral ossification

Answer 2

1. Formation of bone collar around hyaline cartilage
2. Matrix begins to calcify
3. Lack of nutrients causes chondrocytes to die
4. Blood vessels come in with osteoblasts and osteoclasts and turn matrix into spongy bone
5. Medullary cavity is created
6. Periosteum is formed
7. Bone begins to elongate
8. Centers if epiphysis begins to calcify and secondary ossification center forms