Question

what is the function of diaphragm in respiration
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Answer 1

The diaphragm separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity and performs an important function in respiration: as the diaphragm contracts, the volume of the thoracic cavity increases, creating a negative pressure there, which draws air into the lungs.

Answer 2

Answer:

Diaphragm expands downwards into the abdomen thus increasing chest cavity..This allows the lungs to expand as we inhale....As the diaphragm contracts up-wards thus decreasing the chest cavity , it allows the air to expel from the lungs....

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