artery of pterygoid canal

The artery of the pterygoid canal is a branch of the maxillary artery that travels through the pterygoid canal, a narrow bony passageway within the sphenoid bone of the skull. It supplies blood to structures in the auditory tube, tympanic cavity, and upper pharynx.

The artery of the pterygoid canal arises from the maxillary artery in the pterygopalatine fossa. It then passes backward through the pterygoid canal — located at the base of the pterygoid process of the sphenoid bone — to reach the structures it supplies near the base of the skull.

The artery of the pterygoid canal delivers blood to the auditory tube (Eustachian tube), the tympanic cavity (middle ear), the nasopharynx, and the upper pharynx. It is part of the vascular supply to the skull base and upper respiratory tract structures in this region.

The artery of the pterygoid canal may be relevant in the context of pterygopalatine fossa pathology, skull base surgery, and certain otological or nasopharyngeal conditions. It is considered in surgical approaches to this anatomical region. Clinical assessment guides any investigation.

The artery of the pterygoid canal can be visualized with CT angiography or MR angiography when detailed imaging of the skull base vasculature is required. It may also be identified during surgical procedures in the pterygopalatine fossa or endoscopic skull base surgery.