| | Bells Palsy Network FACIAL NERVE PARALYSIS INFORMATION (Site not responding. Last check: 2007-11-03) |
 | | These preganglionic fibers travel to the submandibular ganglion via the chorda tympani nerve to innervate the submandibular and sublingual glands, and to the sphenopalatine ganglion via the greater superficial petrosal nerve to innervate the lacrimal, nasal, and palatine glands. |
 | | The terminal branch of the nervus intermedius, the chorda tympani, leaves the mastoid segment 5 mm proximal to the foramen and travels lateral to the incus, medial to the malleus to exit at the petrotympanic fissure. |
 | | In addition, in temporal bone fractures, the GSPN and chorda tympani nerves are very vulnerable to injury and may be disrupted with an intact facial nerve. |
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