Respuesta :
First the air enters the air sac, oxygen moves across the alveoli into capillaries and then into your blood.
How does oxygen get into bloodstream?
- Oxygen travels through the air sacs' paper-thin walls to the capillaries, which are tiny blood vessels, and then into your blood.
- The oxygen is subsequently transported throughout your body by a protein called hemoglobin found in red blood cells.
- At the same moment, the blood's dissolved carbon dioxide leaves the capillaries and returns to the air sacs, where it is ready to be exhaled. Your lungs deliver oxygen-rich blood to your left side of the heart, which circulates it via your body's arteries.
- Through your veins, blood that has not been oxygenated returns to the right side of your heart. Your lungs receive a pumping action from there, allowing you to exhale carbon dioxide and take in more oxygen.
Learn more about the Oxygen transfer with the help of the given link:
https://brainly.com/question/203262
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