APEX Unit 1 – Respiratory- WITH COMPLETE SOLUTIONS
Which muscles tense and relax the vocal cords? correct answer: -Cricothyroid: "Cords Tense" (enlongate) -Thyroarytenoid: "They Relax" (shorten) Which muscles abduct and adduct the vocal cords? correct answer: -Posterior Cricoarytenoid: "Please Come Apart" -Lateral Cricoarytenoid: "Let's Close Airway" Describe the sensory innervation of the upper airway correct answer: Trigeminal -V1 (Ophthalmic) = Nares and anterior 1/3 of septum -V2 (Maxillary) = Turbinates and septum -V3 (Mandibular) = Anterior 2/3 of tongue Glossopharyngeal -Posterior 1/3 of tongue -Soft palate -Oropharynx -Vallecula -Anterior side of epiglottis Superior laryngeal -Internal branch = posterior side of epiglottis to the level of the vocal cords -External branch = 0 sensory function, motor innervation to the cricothyroid muscle
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apex unit 1 – respiratory with complete solutions
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