Breathing sound. Definition

Medical Definition: breathing sound

Sound produced by vibration of the vocal cords turbulent flow passing through the larynx during inspiration and expiration. This noise is transmitted through the trachea and bronchi and through the lungs to the chest wall. At the sound normally produced breathy quality, which increases steadily disappears during inspiration and exhalation, is called breath sounds. Any alteration of the airways or parenchyma adjust the sound and gives rise to different adventitious sounds (crackles, wheezing, crackles, etc.).

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