Sphenoid: easy and brief discussion

Sphenoid

Parts of sphenoid :

1.     Body

2.     Lesser wings

3.     Greater wings

4.     Pterygoid processes

Body of sphenoid

Body of sphenoid has 6 surfaces

•      Superior

•      Lateral

•      Anterior

•      Inferior

•      Posterior

Superior surface of body of sphenoid

Identify following structures

From before backward

1.     Ethmoidal spine

2.     Jugum sphenoidale

3.     Sulcus chiasmatis

4.     Tuberculum sellae

5.     Sella turcica

6.     Middle clinoid processes

7.     Clivus 

Indentify following structure on the anterior  surface of body of sphenoid

1.     Sphenoidal crest

2.     Shenoidal air sinuses

Identify following foramen / fissure of sphenoid

1.     Superior orbital fissure

2.     Optic canal

3.     Foramen rotundum

4.     Foramen ovale

5.     Foramen spinosum 

Sphenoid bone articulate with following bone

1.     Ethmoid

2.     Frontal

3.     Parietal

4.     Petrous and squamous part of temporal bone

5.     Palatine bone

6.     Occipical bone