📝 Key Points about Alveoli

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📝 Key Points about Alveoli:

Structure:

🫁 Tiny, balloon-like sacs.
🫁 Surrounded by capillaries.

Function:

🫁 Gas Exchange: Oxygen passes through the alveolar walls into the blood, while carbon dioxide moves from the blood into the alveoli to be exhaled.
🫁 Surface Area: The large number of alveoli (about 300 million in an adult lung) provides a vast surface area for efficient gas exchange.

Importance:

🫁 Essential for effective respiration.
🫁 Helps maintain proper oxygen and carbon dioxide levels in the blood.

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