PSL301H1 Lecture Notes - Lecture 18: Trihydrogen Cation, Alkalosis, Glomus (Fungus)
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PSL301H1 Full Course Notes
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Time how long it takes before you must breathe. Pco2 is reduced and also [h+] is reduced. Less drive to breath, block of chemoreceptors. Pulmonary ventilation matches o2 uptake/consumption and co2 production/elimination. Pulmonary ventilation is the rate at which gas enters or leaves the lung. To have the levels of co2 and o2 at a relatively constant level, we have chemoreflexes which monitor the levels and alter ventilation, thereby allowing for gas exchange. As ventilation increases, arterial pco2 drops: the metabolic. Alveolar pco2 = co2 production / alveolar ventilation. As ventilation (l/min) is increased, arterial pco2 mmhg is dropped. As breathing is increased, more co2 is blown off and pco2 falls. The and the position of the metabolic hyperbola is determined by the rate of production of co2 by metabolism. Located in medulla oblongata (brain stem) and scattered in other brain tissue. Detect [h+] by binding in cerebrospinal fluid. Located mainly in the carotid artery and also in aortic bodies.
