Stowell. 4<4: [May 21, 



spheno-palatinurn, with the spheno-palatine, the palatine, the 

 vidian, the cephalic palatine and the naso-palatine nerves ; 

 G. ophthalmicus, with the oculo -motorius and the ciliary 

 nerves. 

 5. Principal Rami: respective origins ; distributions: 

 («) Nerve-trunks: N. mandibularis at G. gasseri. 

 N. maxillaris at G. gasseri. 

 N. ophthalmicus at G. gasseri. 



(b) Rami of N. mandibularis : 



iV. temporo-auricularis : The origin is at the oval foramen ; the 

 distribution is to the ectal ear, the cheek, the vibrissa?, the 

 dorsal lip ; anastomotic filaments are given to the facial nerve 

 and to the labial plexus. 



N. masselericus : The origin is at the oval foramen, the distri- 

 bution is to the masseter muscle. 



2f. temporalis internus : The origin is common with the masseter 

 nerve ; the distribution is to the temporal muscle. 



N. pterygoicleus externus : The origin is at the oval foramen ; 

 the distribution is to the pterygoid muscle. 



M. buccalis: The origin is at the oval foramen ; the distribution 

 is to the masseter muscle, the mucosa of the mouth and the 

 labial plexus. 



N. lingualis : The origin is common with the internal dental 

 nerve at the oval foramen ; the distribution is to the tongue, 

 the mucosa of the mouth ; it sustains commissural relations 

 with the facial nerve through the chorda tympani, and with 

 the hypo-glossal nerve ; it gives off a pharyngeal nerve. 



JV. dentalis : The origin is common with the lingual ; it is dis- 

 tributed to the mandibular teeth, to the chin ; it becomes the 

 mental nerve peripherad of the foramen mentale. 



N. mylo-Jiyoides : The origin is common with the dental nerve ; 

 the distribution is to the mylohyoid muscle. 



N. digastricus is a ramus of the mylohyoid ; it is distributed to 

 the digastric muscle. 



N. pterpgoideus internus : The origin is at the oval foramen ; the 

 distribution is to the pterygoid muscle. 



JV. tensor tympani has a common origin with the pterygoid, and 

 is distributed to the tensor tympani muscle. 



Chorda tympani is a commissural ramus from the lingual to the 

 facial nerve. 



(c) Rami of N. maxillaris: 



N. orbitalis : The origin is at the round foramen ; the distribu- 

 tion is to the dorsal lid, the lachrymal gland and the integu- 

 ment over the temple. 



N. malaris: The origin is common with the orbital ; the distri- 

 bution is to the cheek, the dorsal lid and the labial plexus. 



