Lungs transport gases to and from our body. Oxygen and carbon dioxide are the two gases involved. Your client has breathing problems and wants more information on breathing and gas exchange
a. How does oxygen transport occur?
b. What determines the pH of the blood and how does this determine what is excreted by the lungs?
c. How do the lungs compensate for metabolic acidosis and metabolic alkalosis?
Students' answers should include the following:
a. Discussion should include plasma, RBCs, and oxyhemoglobin. How diffusion of dissolved oxygen crosses cell membranes should also be discussed.
b. Discussion should include hydrogen ions and how they affect the pH, which affects the amount of CO2 excreted by the lungs.
c. Discussion should include which one the lungs eliminate CO2 to raise pH and which one the lungs retain CO2 to lower pH.
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