lungs

trivia

is capable, on average, of breathing 13 pints of air every minute. 

is not the same size in humans. The right lung is larger than the left lung to accommodate the heart.

is the size of a tennis court if they are opened flat.

is not only concerned with taking in oxygen. Air contains 21 percent oxygen while our bodies only use 5 percent.

is capable of breathing out, on average, 3.5 teaspoons of water per hour.