Spine of sphenoid bone

{{Short description|Lowest part of the front of the skull behind the eye socket}}

{{Infobox bone

| Name = Spine of sphenoid bone

| Latin = spina ossis sphenoidalis,
processus spinosus ossis sphenoidalis

| Image = Gray145.png

| Caption = Sphenoid bone. Upper surface. (Spina angularis labeled at bottom left.)

| Image2 = Gray310.png

| Caption2 = Articulation of the mandible. Medial aspect. (Spine of sphenoid labeled at center top.)

}}

The sphenoidal spine (Latin: "spina angularis") is a downwardly directed process at the apex of the great wings of the sphenoid bone that serves as the origin of the sphenomandibular ligament.{{Cite book |last=Gray |first=Henry |title=Gray's Anatomy |year=1918 |edition=20th |pages=150}}