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This Concept Map, created with IHMC CmapTools, has information related to: Haworth, Shalvoy, Ethington, Jancsy, Migliozzi, O2 has low Solubility, Medullary respiratory center fires neurons to control Ventilation, Chemoreceptors excited by rising levels of O2, Alveoli are sites of exchange for O2, pH decrease enhances unloading of O2, Tissue during cell respiration releases CO2, Respiratory zone defined by presence of Alveoli, O2 exchanged across the respiratory membrane by gradients of Partial pressure, Solubility of a gas depends on its Partial pressure, Pleural Space expands with the contraction of Diaphragm, Ventilation decreases when there are reduced levels of CO2, Partial pressure of oxygen in alveoli can dilate or constrict Pulmonary blood vessels, Conducting zone cleanses, humidifies, and warms the air deliever to the Respiratory zone, CO2 rising levels excite central and peripheral Chemoreceptors, Solubility in the blood Plasma, Alveoli are sites of exchange for CO2, Temperature increase enhances unloading of O2, Medullary respiratory center responds to afferent impulses from Chemoreceptors, HCO3 quickly moves from RBCs to Plasma, CO2 dissociates in the RBCs to HCO3