Pterygoid canal

The pterygoid canal (also vidian canal) is a passage in the skull leading from just anterior to the foramen lacerum in the middle cranial fossa to the pterygopalatine fossa.

Structure
The pterygoid canal runs through the medial pterygoid plate of the sphenoid bone to the back wall of the pterygopalatine fossa.

Contents
It transmits the nerve of pterygoid canal and artery of the pterygoid canal.