pterygopalatine nerves pterygopalatine nerves the two pterygopalatine nerves (or sphenopalatine branches) descend to the pterygopalatine ganglion. pterygopalatine nervesalveolar branches of superior maxillary nerve and pterygopalatine ganglion. (pterygopalatine nerves visible but not labeled.)an illustration of the path of the maxillary nerve.detailsfrommaxillary nervetopterygopalatine ganglionidentifierslatinnervi pterygopalatini, nervi sphenopalatinita98a14.2.01.039ta26218fma52731anatomical terms of neuroanatomy although it is closely related to the pterygopalatine ganglion, it is still considered a branch of the maxillary nerve and does not synapse in the ganglion. it is found in the pterygopalatine fossa. additional images distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.