Question

what is diaphragm write the mechanism of the breathing in human beings

Answer 1

When we breathe in the intercostal muscles and The Diaphragm contract so that the chest cavity or thoracic cavity can expand. And, when we breathe out, the Diaphragm relaxes.

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Answer 2

The action of breathing is because of the changes of the pressure within the thorax.diaphram is a muscular border saperating the thorax and the abdominal muscles.