The structural changes occurring in the bronchi in catarrhal bronchitis have also been ascertained, and, as in the case of pneumonia, have been shown to be frequently excited by the presence of a microphyte.
The places mentioned are all suitable for persons suffering from chronic bronchitis, who should avoid any irritation of the larynx, trachea or bronchi by air which is too dry or which is liable to great changes of temperature.
The drug is excreted partly by the bronchi - which it tends to disinfect - and partly in the urine, which it causes to smell of violets.
Benzoic acid is also excreted by the bronchi and tends to disinfect and stimulate the bronchial mucous membrane.
The secretion of mucus by the bronchi and trachea is greatly reduced and their muscular tissue is paralysed - a fact of which much use is made in practical medicine.