Alveoli are specialized structures in the lungs that allow for efficient gas exchange between the air and the bloodstream. Here's how they are adapted for this function:

1. **Large Surface Area**: Alveoli are tiny sacs within our lungs. However, if you were to spread them out, they would cover an area nearly the size of a tennis court. This large surface area increases the amount of gas that can be exchanged at any one time.

2. **Thin Walls**: The walls of the alveoli are extremely thin (about 0.2 micrometers). This short distance allows gases to quickly diffuse across the alveolar and capillary walls.

3. **Moist Lining**: The alveoli

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Alveoli are specialized structures in the lungs that allow for efficient gas exchange between the air and the bloodstream. Here's how they are adapted for this function:

1. **Large Surface Area**: Alveoli are tiny sacs within our lungs. However, if you were to spread them out, they would cover an area nearly the size of a tennis court. This large surface area increases the amount of gas that can be exchanged at any one time.

2. **Thin Walls**: The walls of the alveoli are extremely thin (about 0.2 micrometers). This short distance allows gases to quickly diffuse across the alveolar and capillary walls.

3. **Moist Lining**: The alveoli

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Alveoli are specialized structures in the lungs that allow for efficient gas exchange between the air and the bloodstream. Here's how they are adapted for this function:

1. **Large Surface Area**: Alveoli are tiny sacs within our lungs. However, if you were to spread them out, they would cover an area nearly the size of a tennis court. This large surface area increases the amount of gas that can be exchanged at any one time.

2. **Thin Walls**: The walls of the alveoli are extremely thin (about 0.2 micrometers). This short distance allows gases to quickly diffuse across the alveolar and capillary walls.

3. **Moist Lining**: The alveoli

How are alveoli adapted for efficient gas exchange?

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