Inferior view of the sphenoid bone
| Term name | Layer | |
|---|---|---|
| 1 | Vomerovaginal groove | Layer 1 |
| 2 | Medial plate | Layer 1 |
| 3 | Pterygoid notch | Layer 1 |
| 4 | Sulcus of auditory tube | Layer 1 |
| 5 | Spine of sphenoid bone | Layer 1 |
| 6 | Foramen spinosum | Layer 1 |
| 7 | Foramen ovale | Layer 1 |
| 8 | Infratemporal crest | Layer 1 |
| 9 | Squamosal margin | Layer 1 |
| 10 | Parietal margin | Layer 1 |
| 11 | Zygomatic margin | Layer 1 |
| 12 | Orbital surface | Layer 1 |
| 13 | Maxillary surface | Layer 1 |
| 14 | Temporal surface | Layer 1 |
| 15 | Greater wing | Layer 1 |
| 16 | Septum of sphenoidal sinuses | Layer 1 |
| 17 | Sphenoidal sinus | Layer 1 |
| 18 | Sphenoidal rostrum | Layer 1 |
| 19 | Sphenoidal crest | Layer 1 |
| 20 | Palatovaginal groove | Layer 1 |
| 21 | Vaginal process | Layer 1 |
| 22 | Lateral plate | Layer 1 |
| 23 | Pterygoid process | Layer 1 |