AND PHYSIOLOGY. 32* 



Fig. 312. 



A View of the Third, Fourth, and Sixth Pairs of Nerves. 1, Ball of the Eye, the Eec» 

 tus Externus Muscle being cut and hanging down from its origin. 2, The Superior Max- 

 illa, 3, The Third Pair, or Motor Oculi, distributed to all the Muscles of the Eye except 

 the Superior Oblique and External Pectus. 4, The Fourth Pair, or Patheticus, going to 

 the Superior Oblique Muscle. 5, One of the Branches of the Fifth. 6, The Sixth Pair, 

 or Motor Externus, distributed to the External Rectus Muscle. 7, Spherio-Palatine 

 Ganglion and Branches. 8, Ciliary Nerves from the Lenticular Ganglion, the short Root 

 of which is seen to connect it with the Thirc 



A Yiew of the Distribution of the Tri- 

 facial, or Fifth Pair. 1, Orbit. 2, Antrum 

 of Highmore. 3, Tongue. 4, Lower Max- 

 illa. 5, Root of Fifth Pair, forming the 

 Ganglion of Casser. 6, First Branch, Oph- 

 thalmic. 7, Second Branch, Superior 

 Maxillary. 8, Third Branch, Inferior 

 Maxillary. 9, Frontal Branch, dividing 

 into External and Internal Frontal at 14. 

 10, Lachrymal branch, dividing before en- 

 tering the Lachrymal Gland. 11, Nasal 5 

 Branch. Just under the figure is the long 

 Root of the Lenticular or Ciliary Ganglion, 

 and a few of the Ciliary Nerves. 12, In- 

 ternal Nasal, disappearing through the 2 

 Anterior Ethmoidal Foramen. 13, Exter- 

 nal Nasal. 14, External and Internal 

 Frontal. 15, Infra-Orbitary Nerve. 16, 

 Posterior Dental Branches. 17, Middle 

 Dental Branch. 18, Anterior Dental 

 Nerve. 19, Terminating Branches of In- 

 fra-Orbital, called Labial and Palpebral. 



20, Subcutaneous Malb,or Orbitar Branch. 



21, Pterygoid or Recurrent, from Meckel's 

 Ganglion. 22, Five Anterior Branches of 

 Third of Fifth, being Nerves of Motion, 

 and called Masseter, Temporal, Ptergoid, 

 and Buccal, 23, Lingual Branch joined at an acute angle by the Chorda Tympani. 2-1, 

 Inferior Dental Nerve terminating in 25, Mental Branches. 26, Superficial Temporal 

 Nerve. 27, Auricular Branches. 2S, Mylo-hyoid Branch. 



Pair, 



Fig. 313. 



