Alveoli
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Last updated 6:15 PM on 1/6/26
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4 Terms
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What are alveoli
Air sacs in the lungs
2
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How many alveoli per lung
240 million
3
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What happens to diaphragm and rib cage during inhalation
Expands and contracts
4
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4 alveoli adaptations
One cell thick wall so short diffusion pathway
Well ventilated so higher Oxygen concentration in lungs
Large surface area so more diffusion space
Very good blood supply to maintain high concentration gradient
Note 
Flashcards (42)