. Cunningham's Text-book of anatomy. Anatomy. Vallecula Ventriculus laryngis Recessus piriformis-~~W Aryepiglottic fold Processus vocalis of arytsenoid cartilage. Epiglottis Plica ventricularis Tuberculum cuneiforme I Rings of trachea B Tuberculum corniculatum A Fig. 857.—Cavity of the Larynx, as seen by means of the laryngoscope. A. Rima glottidis closed. B. Rima glottidis widely opened. recess may be seen. In the interior of the larynx the ventricular and 'the vocal folds are easily recognised, and the interval between the two, or, in other words, the entrance into the laryngeal ventricle, a
. Cunningham's Text-book of anatomy. Anatomy. Vallecula Ventriculus laryngis Recessus piriformis-~~W Aryepiglottic fold Processus vocalis of arytsenoid cartilage. Epiglottis Plica ventricularis Tuberculum cuneiforme I Rings of trachea B Tuberculum corniculatum A Fig. 857.—Cavity of the Larynx, as seen by means of the laryngoscope. A. Rima glottidis closed. B. Rima glottidis widely opened. recess may be seen. In the interior of the larynx the ventricular and 'the vocal folds are easily recognised, and the interval between the two, or, in other words, the entrance into the laryngeal ventricle, appears as a dark line on the lateral wall of the larynx. The ventricular folds are red and fleshy-looking; the vocal folds during phonation are tightly stretched and pearly white— the white colour being usually more apparent in the female than in the male. The outline and yellowish tinge of the vocal process at its attachment to the vocal fold, and the outline of the ventral part of the base of the arytsenoid cartilage to a slight extent as well, can be made out in a successful laryngoscopic examination. The vocal folds during ordinary inspiration are seldom at rest, and with the laryngoscope their movements may be studied. It should be borne in mind that the picture afforded by the laryngoscope does not give a true idea of the level at which the different parts lie. The cavity appears greatly shortened, and its depth diminished. TEACHEA. The trachea or windpipe is a wide tube which is kept permanently patent by a series of cartilaginous rings embedded in its wall. These rings are deficient dorsally, and consequently the tube is not completely cylindrical: its dorsal wall is flattened. The trachea begins at the inferior border of the cricoid cartilage, opposite the inferior margin of the sixth cervical vertebra. From this it extends through the neck into the superior mediastinum of the thorax, and it ends at the level of the superior border of the fifth thoracic vertebra by
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
