Stowell.] 470 [May 21, 



ganglion it divides into two ramuli, the shorter of which (Fig. cephalic) 

 is distributed to the roof of the mouth caudad of the rugae ; the longer 

 (Fig. caudal) bends caudad and supplies the soft palate to its caudal 

 border ; the caudal ramulus receives an anastomotic twig from N. pala- 

 tinus cephalicus. 



N. pharyngeus, a small nerve, has its origin from the sphenopalatine 

 ganglion at the origin of the vidian nerve (possibly the nerve is an offset 

 of N. vidianus) ; it supplies the pharyngeal mucosa (not shown in the 

 diagram). 



N. naso-palatinus is the principal offset of the spheno-palatine ganglion 

 cephalad ; it enters the spheno-palatine foramen (Fm. Sph.), lies upon the 

 floor of the nares, passes ventrad through the anterior palatine foramen 

 (Fm. pit. a.), and anastomoses with the cephalic palatine nerve (Pit. ce.). 

 Numerous filaments from this nerve are traced in plexiform relation upon 

 the membrane which covers the turbinated bones and the floor of the 

 nares. 



N. N. dentales caudales : Dorsad of the caudal angle of the maxillary 

 bone a single filament is given off which penetrates the alveolus and sup- 

 plies the molar tooth (Fig. m.) ; just cephalad, two considerable fasciculi 

 (Dent, ca.) separate, lie along the infraorbital fossa, penetrate small fora- 

 mina in the bone and terminate in the premolar teeth (Fig. p. m.) ; these 

 dental nerves anastomose freely before they penetrate the bone, and also 

 sustain a similar relation throughout the cancellous tissue of the alveoli ; 

 filaments of these ramuli join the cephalic dental nerve (dent. ce.). 



N. dentalis cephalicus: Just caudad of t.he infraorbital foramen (Fig. 

 Fm. inf. orb.) a considerable fascicle, X. dentalis cephalicus, penetrates 

 the dental foramen (Fm. d.), together with an arteriole; it lies cephalo- 

 mesad along a canal in the cancellous tissue of the maxillary bone, and 

 gives nerve-supply to the canine tooth ; it continues mesad until the ter- 

 minal filaments anastomose with the nasal plexuses upon the turbinated 

 bone in the region of the premaxilla. This nerve receives filaments from 

 the caudal dental rami, and becomes considerably enlarged in the canal 

 between the canine tooth and the foramen which leads to the prenares. 



Is this enlargement the ganglion of Bochdalek? (Fig. B.) 



N. infra-orbitalis is the continuation of the maxillary peripherad of the 

 infra-orbital foramen (Inf. orb.). The nerve-trunk divides into a leash of 

 terminal fasciculi. 



N. labialis supplies the dorsal lip, the papillae on its ental surface, the 

 adjacent mucosa and the vibrissa?. 



N. nasalis terminates upon the integument which covers the nasal 

 cartilage. 



N. palpebralis is distributed to the ventral lid and the conjunctiva as far 

 mesad as the nasal duct. 



N. lachrymalis takes a dorsal course around the orbit, and terminates 

 in the lachrymal gland, where it anastomoses with the lachrymal nerve, 

 an offset of the orbital (Tmp. ce.), q. v. 



