Their numbers vary from one pair to seven, and they are inserted either upon the middle portion of the bronchial semi-rings (Mesomyodi), or upon the ends of these semi-rings where these pass into the inner tympaniform membrane (Acromyodi).
For several years Cobden had been suffering severely at intervals from bronchial irritation and a difficulty of breathing.
The outer membranes are spread out between two or more successive bronchial semi-rings, a distance from the trachea which is, in typical cases, devoid of sounding membranes; some Cuculi, Caprimulgi, and some owls.
Benzoic acid is also excreted by the bronchi and tends to disinfect and stimulate the bronchial mucous membrane.
Thus as it passes out by the bronchial mucous membrane it increases the amount of secretion and so acts as an expectorant.
The name Weissenburg occurs in three other places; the town of Weissenburg-am-Sand in Bavaria; a Swiss invalid resort in the Niedersimmental, above Lake Thun, with sulphate of lime springs, beneficial for bronchial affections; also a Hungarian comitat (Magyar Fejervar), with Stuhlweissenburg as capital.
As it is largely excreted by the lungs it may be found useful in bronchial asthma.
Omitting the paired tracheo-clavicular muscles, we restrict ourselves to the syringeal proper, those which extend between tracheal and bronchial rings.
In the north, however, the hot lowlands are malarial and unsuited to north European settlement, while the dry, elevated plateaus are celebrated for their healthiness, those of Catamarca having an excellent reputation as a sanatorium for sufferers from pulmonary and bronchial diseases.
On the Bade Insel is the Kurhaus (1872) and also the chief spring, the Elisabethquelle, impregnated with iodine and bromine, and prescribed for scrofulous, bronchial and rheumatic disorders.