THE LARYNX 401 



The cornicula laryngis (cartilages of Santorini) are two 

 small, cervical nodules, of yellow elastic tissue, which articulate 

 with the summits of the arytenoid cartilages and serve to 

 prolong them backward and inward. They are lodged in the 

 arytenoepiglottic fold. 



The cuneiform cartilages (Wrisberg's) are two small, yellow 

 bodies of elastic cartilage, which stretch between the arytenoid 

 cartilage and the epiglottis. They are situated in the aryteno- 

 epiglottic fold. 



The epiglottis is a fibrocartilaginous lamella, shaped like a 

 leaf, lying behind the tongue and in front of the upper orifice 

 of the larynx. Above it is broad, below narrow and prolonged 

 to the notch above the pomum Adami by the thyroepiglottic 

 ligament, or rather, to the angular interval just below the 

 notch, and is attached to the upper border of the body of the 

 hyoid bone by the hyoepiglottic ligament. Laterally are 

 attached the arytenoepiglottic folds of mucous njembrane 

 extending back to the apices of the corresponding arytenoids. 

 They contain areolar tissue and a few muscular fibers. The 

 anterior surface is connected with the tongue by the lateral 

 and median glossoepiglottic folds. The posterior surface is 

 concave transversely, convex longitudinally. 



The ligaments of the larynx are extrinsic and intrinsic. The 

 former connect it to the hyoid bone; the latter connect its 

 parts together. 



The extrinsic ligaments are the middle thyrohyoid ligament, 

 the two lateral thyrohyoid ligaments, and the hyoepiglottic 

 ligament. 



The middle thyrokyoid ligament is a fibroelastic structure 

 attached to the entire border of the notch of the thyroid cartilage 

 and to the upper border of the posterior surface of the body 

 of the hyoid bone. The lateral thyrohyoid ligaments run between 

 the upper cornua of the thyroid and the greater cornua of the 

 hyoid bone. They sometimes enclose the cartilage triticea, 

 a small cartilaginous nodule occasionally ossified. The hyo- 

 epiglottic ligament runs from the front of the epiglottis near 

 its apex to the upper border of the body of the hyoid bone. 

 The middle and lateral thyrohyoid ligaments are thickened 

 portions of the thyrohyoid membrane, due to the contained 

 elastic fibers. The cricotracheal ligament connects the cricoid 

 cartilage to the first ring of the trachea. It resembles the 

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