Question

Role of diaphragm and intercostal muscles

in breathing​

Answer 1

Respiratory muscles

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

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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.

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