Os sphenoidale

The sphenoid bone is a large, complex, unpaired bone forming the central parts of the anterior and central skull base.

Gross anatomy

Parts of the sphenoid bone include:

Articulations

The sphenoid bone articulates with twelve bones:

Fissures, foramina, grooves and canals

The sphenoid bone includes:

History and etymology

Galen (129-199) first described the bone by this name. It is derived from the Greek σφήν (sphen) meaning wedge. Some sources claim that the intended name was sphecoid, derived from Greek σφηξ (sphex) meaning wasp, but was inaccurately copied or translated .

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