[ Nomina ] I . Body

1. Post.surf.
   1. Sawn-off surf.

2. Sup.surf.
   1. Hypophyseal fossa
   2. Dorsum sellae
   3. Post.clinoid proc.
   4. Tuberculum sellae
   5. Middle clinoid proc.
   6. Sellae turcica

3. Ant.surf.
   1. Opening of sphenoidal sinus
   2. Sphenoidal concha
   3. Sphenoidal crest

4. Inf.surf.
   1. Sphenoidal rostrum
   2. Vaginal proc.
   3. Palatinovaginal groove
   4. Vomerovaginal groove
   5. Sphenovomerin groove
   6. Sphenopalatine groove

II . Greater Wing

1. Orbital Surf.

2. Temporal Surf.
   1. Infratemporal crest
   2. Temporal surf.
   3. Infratemporal surf.
   4. Sphenoidal spine
   5. Groove for auditory tube

3. Cerebral Surf.
   1. Foramen rotundum
   2. Foramen ovale
   3. Foramen spinosum
   4. Carotid groove
   5. Lingula
   6. Groove for middle meningeal vessels

III . Lesser Wing

1. Optic canal
2. Sulcus chiasmatis
3. Limbus sphenoidalis
4. Jugum sphenoidale
5. Ethmoidal spine
6. Ant.clinoid psroc.
7. Sup.orbital fissure

IV . Pterygoid Proc.

1. Med.pterygoid lamina
2. Lat.pterygoid lamina
3. Pterygoid fissure
4. Pterygoid fossa
5. Pterygoid hamulus
6. Pterygoid canal
7. Pterygoid tuberc.
8. Scaphoid fossa