Physiology 2130 Study Guide - Final Guide: Erythropoiesis, Respiratory Tract, Peripheral Chemoreceptors

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Provides oxygen to the blood and the cells to produce atp. Removes carbon dioxide from the blood (waste product) Five factors that maximize simple diffusion across the blood gas barrier: short diffusion distance (0. 2 microns, very large surface area, gradient for diffusion, lipid soluable substances (co2 and o2, slow blood flow. Boyles law: states that pressure varies inversely with the volume, pressure= 1/ volume, meaning that a closed volume of gas, when the volume increases the pressure decreases, inverse relationship. Physical environment of the lungs: atmospheric pressure (760mmhg, alveolar pressure (varies) between breathes (760mmhg) This should be greater that the intraplueral space, if it is lower the lung will collapse: intrapleural space (756mmhg) between breathes. Transpulmonary pressure: alveolar pressure intrapleural pressure, 760 756 = +4mmhg, the significance of this is it is an outward force keeping lungs inflated, so the lungs don"t collapse when exhaling.