BIO 242 Lecture Notes - Lecture 33: Central Nervous System, Respiratory Acidosis, Peripheral Nervous System
28 Nov 2016
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Co2 + h2o h2co3 h+ + hco3. Co2 reacts with water which forms carbonic acid. The lower the ph level, the greater hydrogen ion concentration. The higher the ph level, the lower hydrogen ion concentration. If you have a low ph level (acidosis), you would want to increase ventilation and/or respiratory rate. If you have a high ph level (alkalosis), you would want to decrease ventilation and/or respiratory rate. Kidneys- can selectively retain or eliminate h+ (hydrogen ion) and can selectively retain or eliminate hco3 ph abnormalities. Acidosis causes depression of functions of the central nervous system (cns) which can lead to disorientation or coma and often result in death. Alkalosis causes overexcitement of functions of the peripheral nervous system (pns) which can lead to muscle spasms or convulsions and often result in death. Compensations: buffer systems will remove hydrogen ions since there is a high concentration of them in respiratory acidosis.
