BPK 205 Chapter Notes -Pulmonary Stretch Receptors, Peripheral Chemoreceptors, Local Anesthetic

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Inspiration causes increased air flow, and blood flow into pulmonary vessels. This stretches pulmonary stretch receptors, inducing the hering- The reflex causes inhibition of inspiration, so that the expiration phase can be commenced. Increased co2 shifts equation right to produce more h+ and lower ph. 40. be able to describe, with a davenport diagram, all 4 acid-base disturbances and their respective compensations: draw the 3 stages of ventilation that occurs when exercise starts from rest and steps up to a moderate intensity. Also attribute their corresponding physiological mechanisms: what happens to ventilation and performance when heo2 is inspired rather than room air, ventilation increases because it is easier for respiratory muscles to do work. Air can become stuck inside the lung, and this can increase the tidal volume. Residual volume increase increases: restrictive pulmonary disorders makes it more difficult for the lung to expand. This means there is a decrease in compliance.

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