1. sinus frontalis, 2. margo supra-orbitalis, 3. ala minor, os sphenoidale l.s., 4. ala minor, os sphenoidale l.d., 5. os sphenoidale, corpus, 6. sinus ethmoidales, 7. canalis opticus, 8. margo orbitalis lateralis, 9. fissura orbitalis superior, 10. sinus sphenoidalis, 11. arcus zygomaticus,12. os…