The sphenoidal spine (Latin: "''spina angularis''") is a downwardly directed process at the apex of the great wings of the

sphenoid bone The sphenoid bone is an unpaired bone of the neurocranium. It is situated in the middle of the skull towards the front, in front of the basilar part of the occipital bone. The sphenoid bone is one of the seven bones that articulate to form the o ...

that serves as the origin of the

sphenomandibular ligament The sphenomandibular ligament (internal lateral ligament) is one of the three ligaments of the temporomandibular joint. It is situated medially to - and generally separate from - the articular capsule of the joint. Superiorly, it is attached to the ...

Additional images

File:Spine of sphenoid bone.png,

Base of skull The base of skull, also known as the cranial base or the cranial floor, is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the calvaria. Structure Structures found at the base of the skull are for ...

. Inferior surface. Spine of sphenoid bone marked with black circle

References

External links

* - "Schematic view of key landmarks of the infratemporal fossa." * Bones of the head and neck {{musculoskeletal-stub