<prompt> All of these are branches of maxillary nerve in pterygopalatine fossa except:Zygomatic nerveInfraorbital nervePterygopalatine nervePosterior superior alveolar nerve  <response>: Infraorbital nerve emerges within the orbit.Gives 2 branches:Middle superior alveolar nerve - arises in infraorbital groove. Anterior superior alveolar nerve - arises in infraorbital canal.Branches of maxillary nerve in pterygopalatine fossa:Zygomatic nerve:-ZygomaticotemporalZygomaticofacialGanglionic branches branches of pterygopalatine ganglion. Posterior superior alveolar nerveKEY CONCEPT:Infraorbital nerve is the continuation of maxillary nerve. Enters the orbit through inferior orbital fissure. 