Vesicular breathing

What is a respiratory phenomenon like? vesicular respiration? This is a special noise recorded during breathing.

It is associated with the oscillation of the components of the alveolar walls of the elastic type during the period of filling the alveolar airs directly at the inhalation stage.

During inhalation, the alveoli are filled with air only sequentially. For this reason, the combination of an extraordinary large number of sounds caused by the fluttering of the alveolar walls, as a result, forms a soft “blowing” type of noise that can be heard during the entire period of inhalation. This noise tends to gradually increase.

The noise of vesicular breathing can be compared with the sound that is heard, if you say the letter "f" at the stage of inhalation of air. Another analogy is sipping tea from a saucer when tea liquid is sucked through the lips.

vesicular respiration

The fluttering of the alveolar walls also occurs at the very beginning of the expiratory phase, due to which the second stage of vesicular respiration, which is shorter in duration, is formed. You can listen to this stage only in the first part of the exhalation stage. This is due to the fact that when the voltage level of the alveolar walls decreases, there is a rapid decrease in the frequency of oscillations of their elastic components, which quickly fade out.

Under normal physiological conditions, it is preferable to use the anterior chest zone below the second rib and lateral to the circumferential line to listen to vesicular respiration. In addition, use axillary zones and areas located below the corners of the blades. In other words, we are talking about areas where the bulk volume of the lung tissue is in the chest cavity.

By the way, it is very difficult to listen to vesicular breathing in the tops of the lungs and in the lowest areas, where there is significantly less lung tissue, since it is very weak.

Other interesting articles on this topic:

  1. Bronchial respiration in pathology
  2. Amphora breath
  3. Bronchial respiration
  4. Weakening of vesicular respiration
  5. Increased vesicular respiration