<prompt> A 40 year old patient has a dry eye and reduced nasal secretions. On routine examination CNS system was normal. The location of a lesion might be in theOtic ganglionSphenopalatine ganglionCiliary ganglionSuperior cervical ganglion  <response>: The sphenopalatine ganglion or pterygopalatine ganglion is a parasympathetic ganglion found in the pterygopalatine fossa.It takes care of several glands like LNP lacrimal, nasal palatine glandsThe pterygopalatine ganglion ganglion of Meckel, the largest of the parasympathetic ganglia associated with the branches of the trigeminal maxillary branch nerve, is deeply placed in the pterygopalatine fossa, close to the sphenopalatine foramen. 