Science, asked by varun243, 1 year ago

define breathing explain the mechanism of breathing

Answers

Answered by dimpy215
25
Mechanics of Breathing. The action of breathing in and out is due to changes of pressure within the thorax, in comparison with the outside. This action is also known as external respiration. When we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity.
Answered by khushee1237
7
the process of taking air into and expelling it from the lungs.
The action of breathing in and out is due to changes of pressure within the thorax, in comparison with the outside. This action is also known as external respiration. When we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity.


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