A SENSE of dissatisfaction as to the care of cephalic pain by giving attention to the sphenopalatine ganglion (Meckel's ganglion) and its connecting nerves led me to undertake studies of the ethmoid branches of the ophthalmic nerve. It is the purpose of this thesis then, first, to establish the importance of these nerves in rhinologic symptomatology and, second, to bring about recognition of mechanical defects of the olfactory fissure which produce chronic infection of this area, with pain stimuli being transmitted by these nerves. A symptom complex is produced which will be described as the syndrome of the olfactory fissure.
It would seem that the study of irritations of the ethmoid nerve has not received the attention it deserves. If my search of the literature has been accurate, little emphasis has been placed on it, and that largely in the foreign literature.In 1918 Sluder1 emphasized the posterior innervation