Greater wings of sphenoid bone

Definition

The greater wings of the sphenoid bone are large, wing-shaped extensions on either side of the sphenoid bone, contributing to the floors of the middle cranial fossa and the orbits. They play a crucial role in forming part of the skull's base and sides, providing structural support for the brain and protection for several critical nerves and blood vessels.

Related terms

Sphenoid Bone: A butterfly-shaped bone at the base of the skull that plays a critical role in forming its structure and housing important anatomical features like the pituitary gland.

Middle Cranial Fossa: A depression in the base of the skull where parts of the brain rest, bounded laterally by structures including parts of the sphenoid bone such as its greater wings.

Optic Canal: A small opening in the sphenoid bone through which the optic nerve passes from the eye to reach the brain, highlighting how bones provide protective pathways for nerves