How do cranial bones develop?

Question

How do cranial bones develop?

Answer 1

Intramembranous ossification mainly occurs during formation of the flat bones of the skull. It involves the replacement of sheet-like connective tissue membranes (derived from mesenchyme tissue) with bony tissue. The steps in intramembranous ossification are:

1. Development of ossification center

2. Calcification

3. Formation of trabeculae

4. Development of periosteum

Answer 2

Both as cartilage and membrane bones.