How does damage to the lower respiratory system affect the body? Check all that apply.

The lower respiratory system, especially the lungs and alveoli, moves oxygen into the blood and removes carbon dioxide. Damage can interfere with oxygen delivery, so A applies; it can also cause carbon dioxide to build up or be removed too quickly, changing the blood’s pH, so D applies. Blood movement to cells is mainly a circulatory-system function, and lung damage does not necessarily stop the surrounding muscles from working.

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