. The anatomy of the domestic animals. Veterinary anatomy. CAVITY OF THE LARYNX 521 The vontricularis rotates the arytenoid so as to bring I lie apical part of the cartilage down- ward and forward. In some cases there is a small thyro-arytenoideus extemus muscle which arLses from the medial face of the lamina of the thyroid cartilage near the dorsal border, passes upward and backward, and blends with the arytenoideus trans\-ersus. Cavity of the Larynx Tlie cavity of the larynx (Cavum laryngis) is smaller than one would naturally expect from its external appearance. On looking into it through t
. The anatomy of the domestic animals. Veterinary anatomy. CAVITY OF THE LARYNX 521 The vontricularis rotates the arytenoid so as to bring I lie apical part of the cartilage down- ward and forward. In some cases there is a small thyro-arytenoideus extemus muscle which arLses from the medial face of the lamina of the thyroid cartilage near the dorsal border, passes upward and backward, and blends with the arytenoideus trans\-ersus. Cavity of the Larynx Tlie cavity of the larynx (Cavum laryngis) is smaller than one would naturally expect from its external appearance. On looking into it through the pharyngeal end two folds are seen projecting from each lateral wall. These are termed the. Fig. 4G4.—Part of .S.\gittal Section' of He.^d of Horse. Section is cut just to left of median plane. 1, Epiglottis; 2, body of thyroid cartilage; 3, ar>-tenoid cartilage; 4, 4', lamina and arch of cricoid cartilage; 5, ary-epiglottic fold; 0, vocal cord (.labium vocale); 7, ventricular fold or false vocal cord (plica ventricularisj: S, lateral ventricle of larynx; S', dotted line indicating contour of larj-ngeal saccule; 9, middle ventricle of larj'nx; 10, m. crico- arj-tenoideus dorsalis; 11, cesophagus; 12. septum of areolar tissue between guttural pouches; 13. m. rectus capitis ventralis; 14, body of sphenoid bone; 15, pharyngeal recess; 16, arrow points into nasal cavity; 17, pharj'ngeal open- ing of auditive or Eustachian tube: IS, posterior pillars of soft palate united over aditus oesophagi; 19. arrow pointa into vestibule of larynx; 20, soft palate; 21, tonsil; 22, root of tongue; 23. m. hyo-epiglotticus; 24, hyoid bone; 25, mandibular lymph glands; 26, mm. omo-hyoideua and sterno-hyoideus; A, vestibule of larjnx; B, glottis; C, post- glottic part of larynx: D, trachea; E, pharynx, F, isthmus faucium. vocal cords, and the narrow part of the cavity between them is the runa glottidis. Thus it is convenient to recognize three di%'isions of the cavity. The aditus laryngis, or
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
