Briefly explain the various mechanism of breathing in human being !!!!
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The process of taking air into and expelling it from the lungs is called breathing. The action of breathing in and out is due to changes of pressure within the thorax, in comparison with the outside. ... When we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity
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breathing process
--nostrils --nassal passage --larynx ---pharynx ---trachea ---bronchus ---bronchiols --air sacs (
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