KIN110 Lecture Notes - Lecture 23: Ventral Respiratory Group, Dorsal Respiratory Group, Peripheral Chemoreceptors
14 Sep 2016
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70 mc, 10 diagram/ ll in the blank. 20 questions are from midterm lectures therefore 25% of the test is cumulative (so, 20 questions (all multiple choice, similar to ones from previous exams) are from shit we covered for the midterms and 60 questions are new. Diagram labeling and ll in the blank is strictly new material. Associate the co2 levels with blood ph, explain how respiration can regulate blood ph. Because the respiratory drive, what causes me to inhale and exhale, is largely based on co2 levels not o2 levels. H+ ions are buffered to a certain exten by hemoglobin or proteins in the rbcs and plasma. Hco3- diffuses into plasma >>>> alkaline reserve part of carbonic acid-bicarbonate buffer system. Slow, shallow breathing >>>> co2 accumulates in blood >>>> carbonic acid accumulates and blood ph drops. Rapid, deep breathing >>>> co2 is ushed out of blood >>>> carbonic acid levels drop and blood ph rises.
