How complete ventilation is achieved by birds
Answers
Complete ventilation is achieved by birds in the following manner:
The lungs of birds maintain a fixed volume rather than expanding and contracting. Additionally, unlike other animals with lungs, which have a tidal, bidirectional flow, the lungs in birds are evacuated in just one way.
The several air sacs are inflated and deflated in a complicated sequence, resembling a network of connected bellows, to produce this unidirectional flow. The lungs are continuously supplied with newly inspired air during both inspiration and expiration at the nose, and they are situated between air sacs in terms of the flow of gas.
Expansion of the chest and abdominal cavities results in aspiration into the air sacs. While the ribs and chest wall move laterally, the sternum (breastbone) swings forward and downward. Compression of the air sacs by skeletal muscle results in exhalation.
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Answer:
Complete air flow is executed with the aid of using birds withinside the following manner:
Explanation:
The lungs of birds hold a set quantity in place of increasing and contracting. Additionally, in contrast to different animals with lungs, that have a tidal, bidirectional waft, the lungs in birds are evacuated in only one way.
The numerous air sacs are inflated and deflated in a complex sequence, reminiscent of a community of linked bellows, to provide this unidirectional waft. The lungs are constantly provided with newly stimulated air in the course of each proposal and expiration on the nose, and they're located among air sacs in phrases of the waft of gas.
Expansion of the chest and stomach cavities outcomes in aspiration into the air sacs. While the ribs and chest wall flow laterally, the sternum (breastbone) swings ahead and downward. Compression of the air sacs with the aid of using skeletal muscle outcomes in exhalation.
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