. Diseases of the nose and throat . le band at its anterior extremity. This splitsup into three bands as it extends backward. The first is inserted intothe vocal process of the arytenoid, the second is inserted into the ante-rior face of the same cartilage as high up as the ventricular band, andthe third is inserted into the cricoarytenoid capsular ligament. Across-section of the vocal cord shows that it is triangular, the apex, or 334 DISEASES OF THE LARYNX. •border-line, being turned toward its fellow of the opposite side (). In the adult male the vocal cord has an average length of 2
. Diseases of the nose and throat . le band at its anterior extremity. This splitsup into three bands as it extends backward. The first is inserted intothe vocal process of the arytenoid, the second is inserted into the ante-rior face of the same cartilage as high up as the ventricular band, andthe third is inserted into the cricoarytenoid capsular ligament. Across-section of the vocal cord shows that it is triangular, the apex, or 334 DISEASES OF THE LARYNX. •border-line, being turned toward its fellow of the opposite side (). In the adult male the vocal cord has an average length of 2 x/.,•centimetres and in the adult female 13/4 centimetres. The vocal cordsare covered with mucous membrane, and the fibres of the thyro-arytenoid muscle unite with their outer margins, making a large por-tion of their substance. The only mixed ligament is the epiglottic, consisting of two por-tions, the outer and the inner. The outer connects the epiglottis withthe root of the tongue and the hyoid bone. The inner, or thyroepi-. Fig. 102.—Side-view of the larynx, showing the interior, the rightplate of the thyroid being removed. 1, 2, Arytenoid cartilages. 3, 3,Processi vocales of the arytenoids. 4, Processus musculus of the right aryt-enoid. 5, Upper border of cricoid. 3, 3, 6, Vocal cords. 7, Facet forarticulation of the thyroid with the cricoid. 8, Left plate of the , Left superior cornu of thyroid. 10, Cricoid cartilage. 11, Trachea.(After Lennox Browne.) glottic, ligament connects the lower end of the epiglottis with thethyroid. Between the cartilages and the mucous membrane there is a con-tinuous layer of elastic tissue, giving resiliency as well as smoothnessto the motions of the various parts. The articulations of the larynx are the cricothyroid, cricoaryte- ANATOMY. 335 noid, and the Santorini arytenoid. These joints are provided witharticular cartilages, synovial membranes, and capsular ligaments, andthe movements present are those of flexion and exten
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