| v | foramen magnum |
| a | opisthision |
| b | petrous pyramid (also see: skct06, sklat11) |
| c | internal auditory meatus (also see: skct08) |
| d | dorsum sellae (also see: sklat06, skct05) |
| e | base, greater wing of sphenoid |
| f | inferior orbital fissure |
| g | postero-lateral wall, maxillary antrum |
| h | maxillary antrum |
| i | neck of mandible |