[TA] origin: usually arises from the third part of the maxillary artery, but frequently from the greater palatine artery, within the pterygopalatine fossa. Passes posteriorly to run through the pterygoid canal with the corresponding nerve, supplying the contents and wall of the canal, the mucous membrane of the upper pharynx, the auditory tube, and the tympanic cavity. SYN: arteria canalis pterygoidei [TA], vidian artery.
