2007-03-19 09:06:24 · 3 answers · asked by Diana K 1 in Science & Mathematics ➔ Other - Science
Alveoli. They are part of the lungs. The interior of the lungs branches into a tree-like structure, for maximum surface area. the alveoli are at the ends of the 'branches', and have a surface covered in capillaries. Oxygen passes through the walls of these capillaries and into passing red blood cells, while CO2 passes back out of them and into your lung to be exhaled.
2007-03-19 09:14:00 · answer #1 · answered by Ian I 4 · 0⤊ 0⤋
Alveoli are the sacs where oxygen from the lungs defuses into the bloodstream and carbon dioxide from the blood diffuses into the lungs to be exhaled
2007-03-19 16:12:06 · answer #2 · answered by MLBfreek35 5 · 0⤊ 0⤋
Alveoli are a kind of small, crenelated pasta, similar to "bow-ties", but far more popular in Southern Italy and on the islands nearby.
(Just kidding...they are little sacs in your lungs where the capillaries are so thin gases can dissolve & escape from your blood)
2007-03-19 17:24:46 · answer #3 · answered by Anonymous · 0⤊ 0⤋