Gas Exchange and Circulation

Gas Exchange and Circulation

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Unformatted text preview: hale, and the pressure outside your ribs. Lungs act like a balloon. The fact that the lung contracts back have nothing to do with the diaphragm, but the hydrogen bonding of water. Lungs is lined with water and mucus. When you inhale and fill your lungs, and your lungs are expanding, you are breaking the hydrogen bonding between water molecules. So when your lungs deflate, the water molecules will reform these hydrogen bonds. Water is attracted to each other – principle of cohesion. It also attaches to surfaces that have glucose; attaches to the alveolar wall – principle of adhesion. This is showing the elasticity property...
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This note was uploaded on 02/13/2014 for the course BIO 103 taught by Professor Heidielmendorf during the Fall '10 term at Georgetown.

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