MC Questions:
All of the intrinsic muscles of the larynx are innervated by ---- except for the ---- which is innervated by the external branch of the superior laryngeal.
A) Recurrent Laryngeal branch of CNX; Posterior Cricoarytenoid
B) Recurrent Laryngeal branch of CNX; Cricothyroid Muscle
C)Internal Branch of Superior Laryngeal; Posterior Cricoarytenoid
D) Internal BRanch of Superior Laryngeal; Cricothyroid Muscle
Free Response:
What are the borders of the supraglottis, glottis and subglottis?
Quick Facts:
Malignant Laryngeal Lesions:
-glottic>supraglottic in US but not worldwide
-malignant disorders of subglottis are rare.
-HPV associated subtypes include HPV16.
-GERD suspected in pathogenesis but this is not definitive.
-Genes linked to laryngeal cancer include: p53, Bcl-2, RB
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