Inferior view of the frontal bone

Term name Layer
1 Ethmoidal notch Layer 1
2 Nasal margin Layer 1
3 Frontal sinus Layer 1
4 Frontal notch; Frontal foramen Layer 1
5 Supra-orbital notch; Supra-orbital foramen Layer 1
6 Opening of frontal sinus Layer 1
7 Fossa for lacrimal gland; lacrimal fossa Layer 1
8 Orbital surface Layer 1
9 Orbital part Layer 1
10 Nasal spine Layer 1
11 Nasal part Layer 1
12 Zygomatic process Layer 1
13 Sphenofrontal suture Layer 1
14 Temporal surface Layer 1
15 Supra-orbital margin Layer 1
16 Glabella Layer 1
17 Superciliary arch Layer 1