Oxygen passes through capillary walls and into interstitial space where cells absorb oxygen.
What is respiratory system?
The respiratory system is a complex network of organs and tissues that allow you to breathe. The respiratory system includes the muscles that propel your lungs. These components cooperate to deliver oxygen throughout the body while also removing waste gases such as carbon dioxide.
How does the respiratory system work?
- Breathing is the process by which atmospheric air is drawn in and carbon dioxide-rich alveolar air is expelled.
- Gas diffusion (Oxygen and Carbon dioxide) across the alveolar membrane.
- Gas is transported via the blood.
- Oxygen and Carbon dioxide diffusion between blood and tissues.
- Cells use oxygen for catabolic reactions, resulting in the release of CO.
Thus, we can conclude that option B is correct.
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