Question

explain the process of breathing in and out . explain it's mechanism​

Answer 1

Answer:

the process of taking air into expelling it through the lungs is called breathing . the action of breathing in and out is due to changes of pressure within the throax ,in comparison with outside. when we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity .

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Answer 2

Answer:

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Process of breathing-

The process of breathing (respiration) is divided into two distinct phases, inspiration (inhalation) and expiration (exhalation). During inspiration, the diaphragm contracts and pulls downward while the muscles between the ribs contract and pull upward.