The hiatus for lesser petrosal nerve receives the lesser petrosal nerve as it branches from the glossopharyngeal nerve ( CN IX ) before the glossopharyngeal enters the posterior cranial fossa through the jugular foramen.
32.
The gag reflex can also be used to evaluate the glossphyaryngeal nerve, but also tests the vagus nerve, as only the afferent fibres involved in the reflex are carried by the glossopharyngeal nerve.
33.
These parasympathetic, preganglionic secretomotor fibers originate from the glossopharyngeal nerve ( CN IX ) as one of its branches, the tympanic nerve, which enters the tympanic cavity through the inferior tympanic canaliculus.
34.
The pain is due to malfunction of the glossopharyngeal nerve ( CN IX ), which moves the muscles of the throat and carries information from the throat, tonsils, and tongue to the brain.
35.
The cranial nerves containing GVE fibers include the oculomotor nerve ( CN III ), the facial nerve ( CN VII ), the glossopharyngeal nerve ( CN IX ) and the vagus nerve ( CN X ).
36.
Higher up, it is separated from the external carotid by the styloglossus and stylopharyngeus muscles, the tip of the styloid process and the stylohyoid ligament, the glossopharyngeal nerve and the pharyngeal branch of the vagus nerve.
37.
In the upper part, the carotid sheath also contains the glossopharyngeal nerve ( IX ), the accessory nerve ( XI ), and the hypoglossal nerve ( XII ), which pierce the fascia of the carotid sheath.
38.
Below the inferior fovea, and between the trigonum hypoglossi and the lower part of the area acustica is a triangular dark field, the vagal trigone, which corresponds to the sensory nucleus of the vagus and glossopharyngeal nerves.
39.
The primary cause of ageusia involves damage to the lingual nerve, which receives the stimuli from taste buds for the front two-thirds of the tongue, or the glossopharyngeal nerve, which acts similarly for the back third.
40.
The only nerves containing SVE fibers are cranial nerves : the trigeminal nerve ( V ), the facial nerve ( VII ), the glossopharyngeal nerve ( IX ), the vagus nerve ( X ) and the accessory nerve ( XI ).
