Quain's elements of anatomy . ), have been addedto Czermaks figures to showin horizontal sections of theglottis the position of thevocal ligaments and arytenoidcartilages in the three severalstates represented in the otherfigures. In all the figures, sofar as marked, the letters in-dicate the i^arts as follows,viz.: I, the base of the tongue;€. the upper free part of theepiglottis; e, the tubercleor cushion of the epiglottis ;p h, part of the anterior wallof the pharynx behind thelarynx; in the margin of thearyteno-epiglottidean fold w,the swelling of the membrane caused by the cuneiform c
Quain's elements of anatomy . ), have been addedto Czermaks figures to showin horizontal sections of theglottis the position of thevocal ligaments and arytenoidcartilages in the three severalstates represented in the otherfigures. In all the figures, sofar as marked, the letters in-dicate the i^arts as follows,viz.: I, the base of the tongue;€. the upper free part of theepiglottis; e, the tubercleor cushion of the epiglottis ;p h, part of the anterior wallof the pharynx behind thelarynx; in the margin of thearyteno-epiglottidean fold w,the swelling of the membrane caused by the cuneiform cartilage ; s, that of the corniculum ; a, the tip of the arytenoidcartUages ; c v, the true vocal cords or lips of the rima glottidis; c v s, the sux)erior orfalse vocal cords ; between them the ventricle of the larynx ; in C, i r is placed on theanterior wall of the receding trachea, and 5 indicates the commencement of the twobronchi beyond the bifurcation, which may be brought into view in this state of anatomical structure. On thus examining the superior aperture, there are seenon each side two rounded elevations (fig. , s, w), corresponding respectivelyto the cornicula and the cuneiform cartilages ; while in the middle line in frontthere is a tumescence of the mucous membrane on the lower part of theepiglottis, enabling that structure to close the aperture more accurately whenit is depressed, and named the tuiercle or cvsliion of the epicjlottls (e). Themucous membrane betv/een the arytenoid cartilages is stretched when they areseparated (b, c), and folded double when they are approximated (A). On looking do^^vn throughthe superior opening of the larynx, the glottis oxrima rjlottklis (fig. , c) is seen at some distance below, in the form of a longnarrow fissure running from before backwards. It is situated on a level withthe lower part of the arytenoid cartilages, and is bounded by the truo vocal VOL. II. M M 530 THE LARYNX. cords. Above the gl
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
