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How do you get rid of carbon dioxide in your body?
Cell to Blood Transfer Transport in Blood Lung Capillaries
Questioner：Ethan Martin 2018-04-06 10:04:21
The most authoritative answer in 2024
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Owen Turner——Works at the International Organization for Standardization, Lives in Geneva, Switzerland.
As a respiratory physiologist, I can explain the process by which the human body eliminates carbon dioxide (CO2). Carbon dioxide is a byproduct of cellular respiration, and it's essential for the body to remove it to maintain a healthy balance. Here's how the body gets rid of CO2:
1. Cell to Blood Transfer: CO2 produced by cells diffuses into the bloodstream.
2. Transport in Blood: Most of the CO2 is transported in the blood as bicarbonate (HCO3-), a process facilitated by the enzyme carbonic anhydrase found in red blood cells.
3. Lung Capillaries: When the blood reaches the capillaries in the lungs, the CO2 diffuses out of the blood and into the alveoli (tiny air sacs) of the lungs.
4. Exhalation: The CO2 is then expelled from the body when we exhale.
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Eliza Gonzales——Studied at the University of Johannesburg, Lives in Johannesburg, South Africa.
Excess carbon dioxide must be removed from the body to stop it reaching toxic levels. As the blood flows through the lungs, excess carbon dioxide passes out of the blood and into the alveoli by diffusion. It is then removed from the lungs when we exhale (breathe out).read more >>
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