Question

Which changes takes place during expiration in the diaphragm ​

Answer 1

Answer:

Complete answer: During expiration, the internal intercostal muscles contract, and the diaphragm relaxes. This is because the internal intercostal muscles contracting and the diaphragm relaxing decreases the volume of the thoracic cavity. This in turn decreases the volume of the lungs.

Answer 2

Answer:

During expiration, the internal intercostal muscles contract, and the diaphragm relaxes. This is because the internal intercostal muscles contracting and the diaphragm relaxing decreases the volume of the thoracic cavity. ... As a result, air will move out from the lungs to the atmosphere i.e. expiration.

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