Pterygopalatine ganglion Last edited and medically reviewed by Alaric Steinmetz on 29.03.2023 The pterygopalatine ganglion is located in the Pterygopalatine fossa of the Skull base. FunctionThe parasympathetic fibers for the lacrimal, nasal, and palatal glands synapse in the pterygopalatine ganglion.