![]() ![]() ![]() ![]() Similar sounds are heard over the trachea, and the sounds occur as a result of abnormally increase transmission of airway sounds to the surface of the chest. The expiratory sound is heard during the greater part of expiration, whereas the inspiratory sound stops abruptly at the height of inspiration, with a pause before the sound of expiration is heard. Bronchial breath sounds are characterised by expiration and inspiration producing noise of equal loudness and duration, sounding like blowing through a hollow tube. ![]()
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