Electro-physiology and electro-therapeutics : showing the best methods for the medical uses of electricity / By Alfred C. Garratt.

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in the interior of the ear, a considerable branch of the tri- facial which is liable to become neuralgic. The inferior-maxillary nerve is the third great division of the tri-facial. It first escapes through the foramen ovale, and immediately divides into two principal trunks, the ex- ternal and the internal, which are separated by the external pterygoid muscle. I should have said that the inferior max- illary branch of the tri-facial is partly motor; and it is in the external branch of this, that wo find nearly the whole of its motor roots. This external branch divides at once into Fig. 69. The TriFacial Nerve, or Fifth Pair; fQur brandies, which ai'0 dig- giving a view of the Distribution of its three grand Trunks. triblltcd to tllC tempOl'O-niaXll- 1. Orbit. 2. Antrum Highmorianura. 3. Tongue. 4. Lower Jawbone. 5. Root of the Fifth Pair, forming the Ganglion of Gasser. 6. First Branch of the Fifth Pair, or Ophthalmic. 7. Second Branch of the Fifth Pair, or the Superior Maxillary. S. Third Branch of the Fifth Pair, or Inferior Maxillary. 9. Frontal Branch, dividing into the External and Internal Frontal Nerves. 10. Lachrymal Branch of the Fifth Pair. 11. Nasal Branch. Just under the fig- ure is the long Root of the Len- ticular or Ciliary Ganglion, and a few of the Ciliary Nerves. 12. Internal Nasal Nerve, disappearing through the anterior ethmoid fo- ramen. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. External Nasal Nerve. External and Internal Frontal Nerve. Infra-Orbital Nerve. Posterior Dental Branches. Middle Dental Branches. Anterior Dental Branches. Terminating Branches of the Infra- Orbital Nerve, also called the La- bial and Palpebral Nerves. Sub-cutaneous Mala;, or Orbital Branch. Pterygoid, or recurrent Nerve from Meckel's Ganglion. Five Anterior Branches of the Third Branch of the Fifth Pair. Lingual Branch of the Fifth, joined by the Chorda Tympani. Inferior Dental Nerve. Its Mental Branches. Superficial Temporal Nerve. Auricular Branches. Mylo-Hyoid Branch.