Answer:
The chronological order will be - c, b, d, a
Explanation:
Intramembranous oscification is the process of conversion of mesenchymal tissue into the bone which is completed in the following four steps -
- Some of the mesenchymal cells differentiate into capillaries and the others into osteoblasts. These osteoblasts appear in clusters and these clusters are named as the Oscification Centre.
- Osteoid is secreted by the osteoblast cells and it calcifies in few days.
- Woven bone and its periosteum are formed due to calcification and further deposition.
- Finally the formation of a mechanically stronger bone, lamellar bone, takes place.
