Question

Which part play passive role in breathing?lungs, intercostal muscles , diaphragm, pleura?

Answer 1

Answer:

Intercostal muscles and diaphragm play imp. role in breathing

Explanation:

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Answer 2

Question:

Role of diaphragm and intercostal muscles in breathing.

Answer:

As we know that the diaphragm is attached to the base of the sternum, the lower parts of the rib cage, and the spine.

As the diaphragm contracts, it increases the length and diameter of the chest cavity and thus expands the lungs.

Therefore the intercostal muscles help move the rib cage and thus assist in breathing.