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Updated: April 30, 2025
Burns over the serous cavities abdomen, thorax, or skull are, other things being equal, much more dangerous than burns of the limbs. The risk of œdema of the glottis in burns about the neck and mouth has already been referred to. Children are more liable to succumb to shock during the early period, but withstand prolonged suppuration better than adults.
The doctrine of breath-control was at once adopted, by the most influential vocal scientists, as the basic principle of tone-production. Curiously, neither Dr. Mandl, nor any other advocate of breath-control, seems to have read an article by Sir Charles Bell dealing with this same action, the closing of the glottis against a powerful exhalation.
=Irritant Gases= are Nitrous acid gas; sulphurous acid gas; hydrochloric acid gas; chlorine; bromine; ammonia. They have the common property of causing irritation and inflammation of the eyes, throat, and air-passages, and may cause spasm of the glottis, bronchitis, and pneumonia. =Sulphurous Acid Gas.= One of the products of combustion of common coal.
Hans Vanderbum lay fiat upon his back, for the atmosphere of the wigwam was too warm for covering, his ponderous belly rising and falling like a wave of the sea, and his throat giving forth that peculiar rattling of the glottis, which might be mistaken for suffocation.
On account of their important function in this operation the false vocal cords are called the 'breath-bands. Closure of the glottis by the inflation of the ventricles imposes no strain on the vocal cords. The theory of breath-control by "opposed muscular action" takes no cognizance of this operation. "Control of the breath in singing is effected by this automatic valvular action.
It does away with all danger of the "audible stroke" which occurs most frequently on the very open vowel-sounds, when the air reaches the glottis too late and is obliged to force its way through, the result being a disagreeable click; and it also obviates the defect from the opposite cause, when the air passes through the glottis too soon and results in an aspirated sound, an H before vowels, the voice, for example, emitting "Hi" for "I".
But in addition to, or in the place of those violent contortions or convulsions, the same condition shows itself sometimes in disordered action of the muscles which subserve parts not directly subject to the will, as those for instance which open and close the entrance to the windpipe, or glottis as it is called in medical phraseology.
There really should never be a blow or shock of the glottis; the vocal bands should never strike together violently, or, indeed, strike together at all, in the ordinary sense of the term.
The patient even ate and drank, and asked leave to get up and play with a new toy he had. But, as often happens in this disorder, a severe relapse soon came, with a spasm of the glottis so violent and prolonged that the patient at last resigned the struggle.
In this way you will avoid the stroke of the glottis which is caused by the sudden and uncontrolled emission of the accumulated breath. In attacking a note the breath must be directed to the focusing point on the palate which lies just at the critical spot, different for every tone.
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