he Corniculate Cartilage

he Corniculate Cartilage - arytenoid cartilages. The...

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he Corniculate Cartilage The corniculate cartilages are two small conical nodules consisting of yellow elastic cartilage, which articulate with the summits of the arytenoid cartilages and serve to prolong them posteriorly and medially. They are situated in the posterior parts of the aryepiglottic folds of mucous membrane, and are sometimes fused with the arytenoid cartilages. The Cuneiform Cartilage The cuneiform cartilages of the larynx are two small, elongated pieces of yellow elastic cartilage, placed one on either side, in the aryepiglottic fold, where they give rise to small whitish elevations on the surface of the mucous membrane, just in front of the
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Unformatted text preview: arytenoid cartilages. The Intrinsic Muscles of the Larynx • Posterior Cricoarytenoid • Lateral Cricoarytenoid • Transverse Arytenoid • Oblique Arytenoid • Cricothyroid • Thyroarytenoid The Posterior Cricoarytenoid The posterior cricoarytenoid muscles are extremely small, paired muscles that extend from the posterior cricoid cartilage to the arytenoid cartilages in the larynx. • Origin: Posterior region of the Cricoid • Insertion: Muscular process of the Arytenoid • Innervation: Recurrent branch of the Vagus (CN X) • Action: Abduct and laterally rotate the cartilage to open the rima glottidis...
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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