INTRAPETROUS PART OF FACIAL NERVE 525 



wards, posterior to the pyramid, to gain the stylo-mastoid 

 foramen. 



FIG. 



38 37 36 35 34 



222. Diagram of Intrapetrous part of facial nerve and its connections. 

 (Prof. A. M. Paterson.) 



Nerve to stapedius. 



Chorda tympani. 



Tympanic plexus. 



Communication to lesser superficial 



petrosal nerve. 

 Ganglion geniculi. 

 Motor part of facial nerve. 

 Sensory part of facial nerve. 

 Acoustic nerve. 

 External petrosal nerve. 

 Greater superficial petrosal nerve. 

 Carotid canal. 

 Carotico-tympanic branch. 

 Carotid plexus. 

 Great deep petrosal. 

 Nerve of pterygoid canal, 

 ind 18. Spheno-palatine branches. 

 Maxillary nerve. 

 Spheno-palatine ganglion. 

 External petrosal nerve. 

 Middle meningeal artery. 



22. Otic ganglion. 



23 and 24. Branches to auriculo- tem- 

 poral nerve. 



25. Communication to chorda tympani. 



26. Posterior division of mandibular 



nerve. 



27. Anterior division of mandibular 



nerve. 



28. Lingual nerve. 



29. Inferior alveolar nerve. 



30. Auricula-temporal nerve. 



31. Tympanic branch of glosso-pharyn- 



geal. 



32. Glosso-pharyngeal nerve. 



33. Vagus. 



34. Auricular branch of vagus. 



35. Communication from facial to auricu- 



lar branch of vagus. 



36. Nerve to digastric (post, belly). 



37. Nerve to stylp-hyoid muscle. 



38. Posterior auricular nerve. - 



The branches which spring from or join the facial nerve 

 during its passage through the temporal bone are : 



1. The greater superficial petrosal nerve, "| 



2. Communicating twig to the lesser superficial I from ganglion 



petrosal, | geniculi. 



3. External superficial petrosal nerve, J 



4. Nerve to stapedius. 



5. Chorda tympani. 



6. Communicating twigs to the auricular branch of vagus. 



The greater superficial petrosal nerve has been examined 



