Airway management chapter 5 Flashcards
What nerve provides sensation to the nasal mucous membranes?
V1 of trigeminal nerve anteriorly and V2 posteriorly
What nerve provides sensation to hard anVd soft palates?
palatine nerves from trigeminal nerve
What nerve provides sensation to the a) anterior and b) posterior tongue?
a) lingual nerve from V3 of trigeminal nerve (anterior 1/3)
b) glossopharngeal nerve (posterior 2/3)
What provides sensation to the tonsils?
glossopharngeal nerve
What provides sensation below the cords?
vagus nerve
What nerve supplies sensation to the area below the epiglottis and above the cords?
superior laryngeal nerve of the vagus, internal branch
The muscles of the larynx are innerviated by which nerves?
The cricothyroid muscle is innerviated by the external branch of the superior laryngeal nerve of the vagus; all others are innervated by the recurrent laryngeal nerve
What are the clinical findings in acute unilateral external branch of superior laryngeal nerve denervation?
very subtle clinical findings
What are the clinical findings in acute bilateral external branch of the superior laryngeal nerve denervation?
horseness, easy tiring of voice, NO AIRWAY JEOPARDY
What are the clinical implications of unilateral recurrent laryngeal nerve paralysis?
deterioration in voice quality
What are the clinical implications of acute bilateral recurrent laryngeal nerve paralysis?
stridor, respiratory distress from unopposed tension of the cricothyroid muscle
- less of a problem in chronic bilateral denervation because of compensatory mechanisms (atrophy of larngeal muscles)
What are the clinical implications of bilateral vagus nerve denervation?
flaccid, midposition vocal cords; severe phonation problems, but no airway jeopardy
