Dry rales

Wheezing (in Latin “ronchi”) is manifested due to the birth and development of the pathological process in the trachea, bronchi, or in the lung cavity formed. There are two types of wheezing: dry and wet.

Origin I dried the wheezy may be different. The main conditions for the appearance of dry wheezing include narrowing of the lumen of the bronchi. In this case, such a narrowing can be total (with bronchial asthma), uneven (with bronchitis) or focal (occurs with tuberculosis or bronchial tumors). Causes of dry wheezing are listed below.

1) Spasm of smooth muscles of the bronchi, which happens due to an attack of bronchial asthma.

2) The swelling of the bronchial mucosa caused by the inflammation process that was activated in this membrane.

3) Accumulation of viscous sputum in the lumen of the bronchi. Such sputum is able to stick to the wall of the bronchus, because of which the lumen of the bronchus narrows.

4) The formation of fibrous tissue, either in the walls of the individual bronchi, and in the lung tissue. After the formation of tissue, the architectonics of the bronchi changes (typical for diseases such as bronchiectasis or pneumosclerosis).

5) Wave-like fluctuation of viscous sputum during its transition into the cavities of the large and medium bronchi during the inhalation and exhalation phases. Since sputum has a viscosity, when moving air through the cavity of the bronchi, it can lengthen in the form of threads that can adhere to the opposite walls of the bronchus. As a result of the movement of air masses, such strands are tightened, which leads to oscillatory movements, which can be compared with the movements of the string.

And this is even more interesting:

  1. Wet rales
  2. Dry wheezing phases
  3. Nature of wet wheezing
  4. Respiratory System: Cough
  5. Comparative percussion: air reduction