cranial nerves of swallowing

Question 1

this CN holds the mouth shut during swallowing

Answer 1

facial VII

Question 2

this CN relays position of food bolus in mouth (sensory) during swallowing

Answer 2

trigeminal V

Question 3

this CN controls chewing movements during swallowing

Answer 3

trigeminal V

Question 4

this CN senses arrival of bolus at the palate during swallowing

Answer 4

glossopharyngeal IX

Question 5

this CN pushes the bolus up and back against the soft palate during swallowing

Answer 5

hypoglossal XII

Question 6

this CN pulls the hyoid up and forward to bring the larynx beneath the back of the tongue during swallowing

Answer 6

trigeminal V

Question 7

this CN assists in hyoid elevation and dilation of the pharynx during swallowing

Answer 7

glossopharyngeal IX

Question 8

this CN elevates the palate to occlude the nasopharynx during swallowing

Answer 8

vagus X

Question 9

this CN closes laryngeal vestibules by approximation of the vocal folds, ventricular folds, and aryepiglottic folds during swallowing

Answer 9

vagus X

Question 10

this CN contracts the middle and inferior pharyngeal constrictors to narrow the pharynx and initiate peristalsis during swallowing

Answer 10

vagus X

Question 11

this CN relaxes the cricopharyngeal sphincter to allow bolus to enter esophagus during swallowing

Answer 11

vagus X