Biology, asked by sunildatt2678, 11 months ago

Describe the mechanism of breathing in humam beings

Answers

Answered by maanya444444
3

Answer:

When we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity. ... When we exhale the diaphragm and intercostal muscles relax and return to their resting positions. This reduces the size of the thoracic cavity, thereby increasing the pressure and forcing air out of the lungs.

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