There are millions of alveoli found within the lungs. These alveoli are surrounded by a network of capillaries, allowing for oxygen and carbon dioxide to be exchanged between the blood in the ...

The alveoli are tiny structures like clusters of grapes and are covered in capillaries. The capillaries diffuse molecules of O2 into the bloodstream where they are carried around by blood cells ...

Tiny air sacs in our lungs called alveoli allow for air exchange and ... this complex problem called ESCAPE (engineered sacrificial capillary pumps for evacuation). In research published in ...