Airway Flashcards
<p>The nasal pages (nasopharanx) includes</p>
<p>septum, turbinates, adenoids</p>
<p>The functions of the nasopharanyx (4)</p>
<p>2/3 upper aw resistance, humidify, filter, warm air</p>
<p>Nasopharanyx innervated by</p>
<p>trigeminal nerve</p>
<p>Oropharnyx includes (4)</p>
<p>teeth, tongue, hard and soft palate</p>
<p>Predominate cause of aw resistance in oropharynx</p>
<p>tongue</p>
<p>Oropharynx innervated by (2)</p>
<p>Trigeminal Nerve (hard and soft palate, ant. 2/3 tongue)
Glossopharyngeal (post. 1/3 tongue, soft palate, oropharynx)</p>
<p>Border of nasopharynx</p>
<p>soft palate</p>
<p>Border of oropharynx</p>
<p>epiglottis, tonsils, uvula</p>
<p>Primary cause of upper aw obstruction during anesthesia</p>
<p>loss of pharyngeal muscle tone</p>
<p>Pharynx innervated by</p>
<p>glossopharyngeal and vagus nerves</p>
<p>Larynx is located at</p>
<p>C4-C6</p>
<p>Functions of the larynx (3)</p>
<p>phonation, respiration, aw protection</p>
<p>The function of the epiglottis</p>
<p>cartilaginous anterior border of laryngeal inlet, blocks food from entering larynx when swallowing</p>
<p>Larynx has 9 cartilages, name them.</p>
<p>3 paired (Corniculate, Cuneiform, Arytenoid)
3 unpaired (epiglottis, thyroid, cricoid)</p>
<p>Anterior attachment for vocal cords</p>
<p>Thyroid cartilage, large/most prominent</p>
<p>Cricoid cartilage is the only</p>
<p>complete cartilaginous ring</p>
<p>Narrowest part of pediatric aw</p>
<p>cricoid cartilage</p>
<p>Narrowest part of adult aiw</p>
<p>glottic opening between cords</p>
<p>Posterior attachment for vocal cords</p>
<p>arytenoid cartilage</p>
<p>Often cartilage that is falsely identified in DL</p>
<p>arytenoid</p>
<p>Corniculate cartilages are located</p>
<p>on posterior portion of aryepiglottic fold</p>
<p>Cuneiform cartilages are located</p>
<p>lateral to corniculate cartilages on aryepiglottic fold, sometimes missing*</p>
<p>vocal cords are formed by</p>
<p>thyroartenoid ligaments, are pearly white in color</p>
<p>the portion of the laryngeal cavity above the glottis is the 1
and the portion inferior to vocal cords is 2</p>
<p>1 vestibule
| 2 subglottis</p>
Name intrinsic laryngeal muscles
cricothyroid, vocalis, thyroarytenoid, lateral cricoarytenoid, arytenoid, posterior cricoarytenoid
Lateral cricoarytenoid muscle functions by 1 and is innervated by 2
1 adduct (lets close aw) | 2 recurrent laryngeal nerve (branch of vagus)
arytenoid muscles function 1 and innervated by 2
1 adducts vocal cords (oblique and transverse) | 2 recurrent laryngeal nerve (branch of vagus)
posterior cricoarytenoid muscle function 1 and innervated 2
1 abduct (pull cord apart) | 2 recurrent laryngeal nerve (branch of vagus)
cricothyroid muscle function 1 and innervated 2
1 elongates/tenses vocal cords | 2 superior laryngeal nerve, external branch of vagus
thyroarytenoid muscle functions 1, innervated by 2
1 shortens/relaxes | 2 recurrent laryngeal nerve (branch of vagus)
Vocalis muscle functions 1, innervated by 2
1 relaxes/shortens | 2 recurrent laryngeal nerve (branch of vagus)
Function of intrinsic laryngeal muscles
Control length and tension of vocal cords/size of glottic opening
