Why are pH of 7.4 and PCO2 of 40 normal values for man?
D000136:Acid-Base Equilibrium; D000818:Animals; D001769:Blood; D001831:Body Temperature; D002245:Carbon Dioxide / Q000097:blood*; D005399:Fishes; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008954:Models, Biological; D009132:Muscles / Q000378:metabolism; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D012016:Reference Values; D013696:Temperature
D002245:Carbon Dioxide; D010100:Oxygen