Question

With the help of a labelled diagram describe the respiratory system in humans.​

Answer 1

Answer:

When we breathe in , our ribs are lifted and diaphragm is flattened. As a result , chest cavity becomes larger in size. Carbon dioxide are released into the alveoli by blood. Oxygen in the alveolar air is taken by alveolar blood vessels , and is transported to all the cells in the body.

Answer 2

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when the breath in our, ribs are lifted and diaphragm is flattened . as a result , chest cavity become larger in size. carbon dioxide are released into the alveoli by blood.

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Explanation:

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