22.下列那一神經或血管不在翼腭窩(pterygopalatine fossa)內？ (A)翼腭神經節(pterygopalatine ganglion) (B)上頜神經(maxillary nerve, CN V2) (C)蝶腭動脈(sphenopalatine artery) (D)後篩動脈(posterior ethmoidal artery)