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Updated: May 20, 2025
We can thus, as I infer from Professor Owen's interesting description of these parts, understand the strange fact that every particle of food and drink which we swallow has to pass over the orifice of the trachea, with some risk of falling into the lungs, notwithstanding the beautiful contrivance by which the glottis is closed.
The trachea and bronchial tubes are frequently the seat of inflammation, especially in the spring of the year, the symptoms of which are often confounded with those of other pulmonary diseases. This inflammation is frequently preceded by catarrhal affections; cough is often present for a long time before the more acute symptoms are observed.
Watson of Murfreesboro removed a portion of an umbrella rib from a trachea, but as he failed to locate or remove the ferrule, the case terminated fatally. Brigham mentions a child of five who was seized with a fit of coughing while she had a small brass nail in her mouth; pulmonary phthisis ensued, and in one year she died.
Her symptoms increased to the fifth week, when she became so feeble as to be confined to her bed. A body seemed to be moving in the trachea, synchronously with respiration. At the end of the fifth week the missing crown of the tooth was expelled after a violent fit of coughing; the symptoms immediately ameliorated, and recovery was rapid thereafter.
If, for example, a drop of a fluid that produces no special effect when on the tongue gets into the larynx, trachea, or lungs, the most violent coughing follows. This is one illustration of the protective character of many reflexes.
In the male Merganser the enlarged portion of the trachea is furnished with an additional pair of muscles. Prof. Newton, 'Proc. Zoolog. In the male of the black stork there is also a well-marked sexual difference in the length and curvature of the bronchi. 'Elements of Comparative Anatomy, by R. Wagner, Eng. translat. 1845, p. 111.
Excepting the chest and trachea the resonance-cavities of the voice are located above the larynx. To the chest as a resonator the low tones of the voice owe much of their great volume. Indeed, the chest is such a superb and powerful resonating box that, if it resonated also for the high tones, these, with their inherent capacity for penetration, probably would become disagreeably acute.
But instantly, as the operation commenced, the clerk griped her with his long, horny fingers by the throat, with a snap so sure and energetic that not a cry, not a gasp even, or a wheeze, could escape through 'the trachea, as medical men have it; and her face and forehead purpled up, and her eyes goggled and glared in her head; and her husband looked so insanely wicked, that, as the pale picture darkened before her, and she heard curse after curse, and one foul name after another hiss off his tongue, like water off a hot iron, in her singing ears, she gave herself up for lost.
In the animal of complicated structure special mechanisms are necessary that the essential oxygen be brought to the blood and the useless carbon dioxide removed. The respiratory organs or tract include the mouth, nose, larynx, trachea, bronchial tubes, and the lung-tissue proper or the air-cells.
Trace the air tubes from the trachea to their smallest divisions. The windpipe and heart should be left attached and the specimen kept in a moist condition until used. Demonstrate the trachea, bronchi, and the bronchial tubes, and the general arrangement of pulmonary arteries and veins. Examine the pleura and show lightness of lung tissue by floating a piece on water.
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