The respiratory system, primarily through the lungs, performs excretory functions by removing waste products from the body.
Here's a breakdown of the excretory roles:
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Carbon Dioxide (CO2) Removal: This is the primary excretory function. CO2 is a waste product of cellular respiration, and the lungs expel it during exhalation.
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Water Removal: The lungs also excrete water vapor during respiration. This is especially noticeable in cold weather when exhaled breath condenses into visible vapor.
In summary, the respiratory system contributes to excretion by eliminating carbon dioxide and water, playing a vital role in maintaining the body's homeostasis. According to the provided reference, "The lungs in the respiratory system excrete some waste products, such as carbon dioxide and water."
