Quest GiggleHow many alveoli are in the human lungs?
480 million. Lung tissue is so finely built that a single cubic millimetre packs about 170 of these sacs.
How close would your guess have been?
In the game we ask it like this: “How many million tiny air sacs does one pair of adult lungs hold?”
Type a number — scored exactly the way a round in the game is.
The answer
480million
