The air we breathe is 78% nitrogen, 21.5% oxygen, .5% argon and other gases.
Respiratory Trivia
The left lung is smaller than the right lung to make room for the heart.
__________
Connect With Me On Twitter
Connect With Me On Facebook
The air we breathe is 78% nitrogen, 21.5% oxygen, .5% argon and other gases.
The left lung is smaller than the right lung to make room for the heart.
__________