Lectures on the science of language: First and second series . between the thyroid and arytenoid cartilages, are twoelastic ligaments, like the parchment of a drum split ORGANS OF SPEECH. 125 in the middle, and forming an aperture which iscalled the interior or true g-lottis, and corresponds indirection with the exterior glottis. This aperture isprovided with muscles, which enlarge and contract Fiir. 5. Arytenoid cart. ?&X* of Ton^^^ it at pleasure, and otherwise modify the form of thelarynx. The three cartilages of the larynx supplythe most perfect mechanism for stretching or relax-ing the ch
Lectures on the science of language: First and second series . between the thyroid and arytenoid cartilages, are twoelastic ligaments, like the parchment of a drum split ORGANS OF SPEECH. 125 in the middle, and forming an aperture which iscalled the interior or true g-lottis, and corresponds indirection with the exterior glottis. This aperture isprovided with muscles, which enlarge and contract Fiir. 5. Arytenoid cart. ?&X* of Ton^^^ it at pleasure, and otherwise modify the form of thelarynx. The three cartilages of the larynx supplythe most perfect mechanism for stretching or relax-ing the chords, and likewise, as it would seem, fordeadening some portion of them by pressure of aprotuberance on the under side of the epiglottis (inGerman, Epiglottiswulst). These chords are of dif-ferent length in children and grown-up people, inman and in woman. Their average length in manis 18| mm. when relaxed, 23j mm. when stretched ;in woman, 12? mm. when relaxed, 15? mm. whenstretched: thus giving a difference of about one 126 VIBRATIONS OF AIR. third between the two sexes, which accounts for thedifferent pitch of male and female voices.^ The tongue, the cavity of the fauces, the lips,teeth, and palate, with its velum pendulum anduvula performing the office of a valve between thethroat and nostrils, as well as the cavity of the nos-trils themselves, are all concerned in modifying theimpulse given to the br
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyo, bookyear1875
