HMX Physiology exam 2023 with 100% correct answers
Patm 760 mm Hg (mercury) PN2 (partial pressure of nitrogen in air) Patm PN2 (760 0.78) = 592.8 mm Hg PO2 (partial pressure of oxygen in air) Patm PO2 (760 0.21) = 160 mm Hg Alveolus tiny air sacs of lungs which allow for rapid gas exchange Atmospheric pressure pressure exerted by weight of atmosphere Boyle's Law P x V = k. Inverse relationship between pressure and volume for fixed amount of gas at constant temperature. Pressure * Volume = Constant K Capillaries tiny, branching blood vessels that form a network between arterioles and venules Hemoglobin (Hgb) protein in blood cell that binds O2. Normal level: 12 g/dL. iron rich protein that helps RBCs carry O2 from lungs to rest of body. 1g of Hgb carries 1.39 mL Partial Pressure pressure that would be exerted by one of the gases in a mixture if it occupied the same volume on its own Partial pressure of a gas dissolved in liquid = partial pressure in air above water Pgas = Fgas (friction of gas) x Ptotal
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