2. Base of skeletal
system (5th week)
Dermal
Skull, face, maxilla,
clavicle (diaphysis)
Chondral
Other bones
Enchondral
Perichondral
3.
4.
5.
6. BONE DEVELOPMENT
I
• Dominant anabolic processes
• High protein, Vitamin A, C, B demand
II
• Mineralization of bones
• High Ca, Ph, MG, Cu, Zn, Vitamin D demand
III
• Auto-new bone formation
• High Vitamin D demand, Ca levels 2,44(+- 0,37)