. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. fthe epiglottis. 7, The superior vocal ligament. 9, The ventricle of the The lower vocal ligament. 11, The arytenoid cartilage. 12, 13, The cricoidcartilage. 14, The trachea. 18, The oesophagus. 591. Describe the arytenoid cartilages. 592. What is said of the epi-glottis ? 593. Give the structure of the vocal cords. Where is the ventri-cle of the larynx ? Where is the glottis situated ? What is representedby fig. 104 ? Explain fig. 105. ANATOMY OF THE VOCAL ORGANS. 271 The one is calle
. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. fthe epiglottis. 7, The superior vocal ligament. 9, The ventricle of the The lower vocal ligament. 11, The arytenoid cartilage. 12, 13, The cricoidcartilage. 14, The trachea. 18, The oesophagus. 591. Describe the arytenoid cartilages. 592. What is said of the epi-glottis ? 593. Give the structure of the vocal cords. Where is the ventri-cle of the larynx ? Where is the glottis situated ? What is representedby fig. 104 ? Explain fig. 105. ANATOMY OF THE VOCAL ORGANS. 271 The one is called the superior, and the other the inferior vocalligament. The cavity, or depression between the superiorand inferior ligament, is called the ventricle of the aperture, or opening between these ligaments, is calledthe glottis, or chink of the glottis. It is about three fourthsof an inch in length, and one fourth of an inch in width, theopening being widest at the posterior part. This opening isenlarged and contracted by the agency of the muscles appro-priated to the larynx. Fig. Fig. 106. A view of the larynx from above, showing the vocal ligaments. 1, Theanterior edge of the larynx. 4, The posterior face of the thyroid cartilage. 5, 5, Thearytenoid cartilages. 6, 6, The vocal ligaments. 7, Their origin, within the angleof the thyroid cartilage. 9, Their termination, at the base of the arytenoid , ]0, The glottis. 594. The larynx is connected by muscles with the sternum,oesophagus, base of the skull, hyoid bone, lower jaw, andtongue. This organ is supplied with a large number of blood-vessels, and it likewise receives nerves from the sympatheticsystem, and two large nerves from the tenth pair. The num-ber and size of the nervous filaments distributed to themucous membrane of the larynx, render it more sensitivethan any other portion of the respiratory organs. How is the glottis enlarged or contracted ? Explain fig. 106. 594. Bywhat means and to what
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