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Medical ArticlesEnlargement Of Liver
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In Excessive Heat And Continuous Delirium A Half-bath May Be Given
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After a fright, or some very trying experience, some part of t...
Acute Stenosis Of The Larynx
Etiology.--Causes of a relatively sudden narrowing of the lum...
Foreign Bodies In The Air And Food Passages
The air and food passages may be invaded by any foreign subst...
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Vitamins For Young Persons And Children
Young healthy people from weaning through their thirties shou...
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Brow The Weary
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acts very beneficially when applied to the surface where ther...
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Length Of Pack
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The Triviality Of Trivialities
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The Expletive Method Blood-letting
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Foreign Bodies In The Larynx And Tracheobronchial Tree
Category: FOREIGN BODIES IN THE LARYNX AND TRACHEOBRONCHIAL TREE
Source: A Manual Of Peroral Endoscopy And Laryngeal Surgery
The protective reflexes preventing the entrance of foreign bodies into
the lower air passages are: (1) The laryngeal closing reflex and (2)
the bechic reflex. Laryngeal closing for normal swallowing consists
chiefly in the tilting and the closure of the upper laryngeal orifice.
The ventricular bands help but slightly; and the epiglottis and the
vocal cords little, if at all. The gauntlet to be run by foreign
bodies entering the tracheobronchial tree is composed of:
2. Upper laryngeal orifice.
3. Ventricular bands.
4. Vocal cords.
5. Bechic blast.
The epiglottis acts somewhat as a fender. The superior laryngeal
aperture, composed of a pair of movable ridges of tissue, has almost a
sphincteric action, in addition to a tilting movement. The ventricular
bands can approximate under powerful stimuli. The vocal cords act
similarly. The one defect in the efficiency of this barrier, is the
tendency to take a deep inspiration preparatory to the cough excited
by the contact of a foreign body.
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