PHGY 214 Study Guide - Midterm Guide: Pulmonary Artery, Alveolar Pressure, Blood Pressure
6 Mar 2017
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Pvco2: mixed venous (pulmonary arterial) (partial) pressure of carbon dioxide. Vo2: flow (flux, consumption) of oxygen in l/min. Fio2: fractional concentration of oxygen in inspired gas (~0. 21) Caco2: concentration (content) of carbon dioxide in arterial blood (~480ml/l) Conducting passageways that do not participate in gas exchange. Oxygen: needed to support metabolic reactions that yield energy (atp) required for cellular activities. Carbon dioxide: level in blood and tissue, along with [ions] and [weak acids (proteins] determine acidity affect how enzymes work biochemical reactions. What are the 3 steps of respiration: ventilation: gas exchange between atmosphere and alveoli, alveolar gas exchange: exchange of o2 and co2 between alveolar air. What are the two functional components of the lung? and blood in pulmonary capillaries: mitochondrial respiration. Convection ventilation: inspiration (convection of o2 to alveoli) and expiration (convection of co2 to air) Diffusion gas exchange: of o2/co2 between alveoli and pulmonary caps. Lungs: airways and gas exchange surfaces (airways and alveoli)
