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To explain what makes our lungs so good at getting oxygen into the blood

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To explain what makes our lungs so good at getting oxygen into the blood - PowerPoint PPT Presentation


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To explain what makes our lungs so good at getting oxygen into the blood. WILFs:. Wayne’s legs need lots of energy during a race. So his lungs take air in fast!. Engage. 3. And get the oxygen into his blood ... 20 times as fast as usual!. Engage. 4. discuss.

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PowerPoint Slideshow about ' To explain what makes our lungs so good at getting oxygen into the blood' - brock-meyer


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Presentation Transcript
slide3

Wayne’s legs need lots of energy during a race.

So his lungs take

air in fast!

Engage

3

slide4

And get the oxygen into his blood

...20 timesas fast as usual!

Engage

4

slide5

discuss

What makes lungs so good at

taking in oxygen?

Explore

Elicit

slide6

Oxygen diffuses through lung tissue to get to your blood.

We can model that with something you can see.

Explore

SS1 - 4

slide8

discuss

What did the model show you?

And what does that tell us about diffusion in lung tissue?

Explore

slide9

So alveoli give lungs a huge surface area for gas exchange…

...and their walls are really thin and surrounded by blood vessels.

Explain

9

slide10

So alveoli give lungs a huge surface area for gas exchange…

...which lets gases diffuse much faster between the air spaces and your blood.

Explain

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