Question #fd62f

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Meave60 ยท Dwayne M.
Apr 9, 2015

Both the alveoli in the lungs and villi in the small intestine are in direct contact with blood capillaries. This enables gas exchange in the lungs via the alveoli , and the absorption of nutrients into the blood stream via the villi in the small intestine.

Alveoli
![http://www.3dscience.com/3D_Images/Human_Anatomy/Respiratory/Alveoli/Alveoli.php](useruploads.socratic.org)

Villi

![biology-igcse.weebly.com/http://absorption-ndash-function-of-the-small-intestine-and-significance-of-villi.html](https://useruploads.socratic.org/3u0PLLWNSLeZtURgzkYm_villi%20%281%29.png)

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