• Larynx, Trachea, and Bronchial Tubes
    Larynx, Trachea, and Bronchial Tubes
  • WordNet 3.6
    • n larynx a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech
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Additional illustrations & photos:

Section of the Larynx and Trachea Section of the Larynx and Trachea

Webster's Revised Unabridged Dictionary
    • n larynx lăr"ĭṉks (Anat) The expanded upper end of the windpipe or trachea, connected with the hyoid bone or cartilage. It contains the vocal cords, which produce the voice by their vibrations, when they are stretched and a current of air passes between them. The larynx is connected with the pharynx by an opening, the glottis, which, in mammals, is protected by a lidlike epiglottis.☞ In the framework of the human larynx, the thyroid cartilage, attached to the hyoid bone, makes the protuberance on the front of the neck known as Adam's apple, and is articulated below to the ringlike cricoid cartilage. This is narrow in front and high behind, where, within the thyroid, it is surmounted by the two arytenoid cartilages, from which the vocal cords pass forward to be attached together to the front of the thyroid. See Syrinx.
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Century Dictionary and Cyclopedia
    • n larynx The part of the windpipe in which vocal sound is made and modulated; the organ of phonation. In man the Larynx is the enlarged and modified upper end of the trachea, with some associate parts, as the epiglottis. It opens by the glottis into the pharynx; below, its cavity is directly continuous with that of the trachea or windpipe. It causes the protuberance of the throat called Adam's apple or pomum Adami. The framework of the larynx is gristly, and composed of nine cartilages—namely, the thyroid, the largest, in two symmetrical halves, forming most of the walls; the cricoid, the enlarged upper ring of the trachea; a pair of arytenoids, small pyramidal pieces; a pair of cornicula laryngis or cartilages of Santorini, a pair of cuneiform cartilages or cartilages of Wrisberg. From the arytenoid cartilages, which sit on the posterior part of the cricoid ring, three folds of membrane pass forward on each side: above and from the tips of the arytenoids, inclosing the cornicula laryngis and cartilages of Wrisberg, the aryteno-epiglottic folds pass to the lateral margins of the epiglottis; next below, the false vocal cords run from the anterior surface of the arytenoids to the angle between the two halves of the thyroid, while below this again the true vocal cords are attached behind to the vocal processes of the arytenoid and in front are inserted close to the angle of the thyroid below the insertion of the false vocal cords. The true vocal cords bound the anterior two thirds of the glottis, the posterior third lying between the arytenoid cartilages. Between the true and the false vocal cords on each side there is a recess called a ventricle or sinus of the larynx, which leads into a pouch, the sacculus laryngis. The nerves of the larynx are branches of the vagus. The larynx acts at once as a gate guarding the windpipe and as a vocal organ. It is closed by the approximation of the three mucous folds of one side to those of the other, the epiglottis contributing to the closing of the gap between the aryteno-epiglottic folds. In phonation the arytenoid cartilages are swung around so as to close the rima respiratoria and to bring the vocal cords close to one another and parallel. The vocal cords are drawn tense by intrinsic laryngeal muscles, according to the height of pitch desired. The larynx is larger in men than in women and boys by about one third. The average length of the vocal cords is of an inch in men, in women; of the slit of the glottis, in men, in women. The cracking of the voice in boys at the approach of puberty is due to the rapid growth and change of shape of the larynx: the size is almost doubled in two or three years. In various animals the larynx may be situated anywhere along the windpipe, or even in the bronchial tube. It is generally at the top of the trachea. In birds there are two larynges, one at the top, the other at the bottom of the trachea. The latter is called the syrinx. When the syrinx is still more inferior in position it is wholly bronchial; then there are a pair, right and left, making, with the one at the top, three larynges. See cut under mouth.
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Chambers's Twentieth Century Dictionary
    • n Larynx lār′ingks the upper part of the windpipe: the throat
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  • J. M. Synge
    J. M. Synge
    “Lord, confound this surly sister, blight her brow with blotch and blister, cramp her larynx, lung and liver, in her guts a galling give her.”


Webster's Revised Unabridged Dictionary
NL. from Gr. la`rygx la`ryggos
Chambers's Twentieth Century Dictionary
L.,—Gr. larynx, laryngos.


In literature:

It affects the tonsils, throat, nose, or larynx.
"The Eugenic Marriage, Volume IV. (of IV.)" by Grant Hague
The second man had time for a single scream, though he died just as swiftly when those hands closed on his larynx.
"Planet of the Damned" by Harry Harrison
Thus the opening from the larynx into the pharynx is closed.
"The Psychology of Singing" by David C. Taylor
Should the invaders, however, have secured a foothold in the larynx, then the picture is sadly different.
"Preventable Diseases" by Woods Hutchinson
He was gone less than three minutes, which he had spent with thumb and middle finger to larynx and mastoid bone.
"The Unnecessary Man" by Gordon Randall Garrett
The wonderful purity and warmth of the air seem to have relieved the larynx greatly.
"Robert Elsmere" by Mrs. Humphry Ward
Also the invasion of the larynx, which is happily of rare occurrence, is commonly fatal.
"Hydriatic treatment of Scarlet Fever in its Different Forms" by Charles Munde
Afterwards, however, when he got the cobwebs out of his larynx, he made up for all his previous silence.
"Our Bird Comrades" by Leander S. (Leander Sylvester) Keyser
One morning a delegation headed by the Reverend Doctor Larynx waited upon him.
"The Making of Bobby Burnit" by George Randolph Chester
This is caused by ulcers on the posterior wall of the larynx.
"Prof. Koch's Method to Cure Tuberculosis Popularly Treated" by Max Birnbaum

In poetry:

I cannot flap a flag
Or beat a drum;
Behind the mob I lag
With larynx dumb;
Alas! I fear I'm not
A Patriot.
"At The Parade" by Robert W Service

In news:

Cats produce a purring sound in the larynx.
Extramedullary plasmacytomas most commonly occur in the nasal cavity, nasopharynx, paranasal sinuses, and larynx.
1 Gerhardt Cited by Gowers WR Spasm of the larynx In A manual of the diseases of the nervous system vol II, 2nd ed.
We report an uncommon case of symptomatic venous malformation of the larynx in a 22-year-old man, and the successful surgical management thereof.
Synchronous presentation of extramedullary plasmacytoma in the nasopharynx and the larynx.
Giant cell tumor of the larynx.
Wired reports that the Kyoto study found that the gibbons ' vocal tract and larynx resonate independently -just like us humans - and that allows both of us simians to amplify low-pitched sounds differently from high-pitched ones.
He had cancer of the larynx, said John Golding, a friend.
A finding in the larynx is extremely rare.
In very rare cases, paragangliomas have emerged at other sites in the head and neck, such as the larynx , sinonasal areas, and orbit.
The larynx, also known as the voice box, houses the vocal folds in the upper windpipe.
Extramedullary plasmacytomas of the larynx and parapharyngeal space: Imaging and pathologic features.
The larynx is a tubular structure in the neck, through which air passes to the lungs.
Papillary squamous cell carcinoma of the larynx.

In science:

Voicing, or the phonatory process, occurs when air is expelled from the lungs through the glottis (the space between the vocal folds), creating a pressure drop across the larynx (also commonly called the voice box or vocal tract which houses the vocal folds).
Music in Terms of Science
Such lateral motion of vibrating vocal folds serves to modulate the pressure in the airflow through the larynx; this modulated airflow is the main component of the sound of most voiced phones.
Music in Terms of Science
Like other wind instruments, the sound that the larynx produces is a harmonic series, consisting of a fundamental tone accompanies by harmonic overtones.
Music in Terms of Science
The vocal folds will not vibrate if they are not sufficiently close to one another, or not under the appropriate amount of tension, or not having sufficient pressure drop across the larynx.
Music in Terms of Science
Simplied vocal fold models also show hysteresis (Lucero, 1999), and in pathological cases, evidence for nonlinear bifurcations have been observed in experiments on excised larynxes, and nonlinear models have replicated these observations (Herzel et al., 1995).
Testing the assumptions of linear prediction analysis in normal vowels