Kinesiology 2230A/B Lecture Notes - Lecture 4: Inverse Relation, Partial Pressure, Hemoglobin

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2230A/B
• Professor: Glen Belfry

Document Summary

One unit change (small) in ph = 10x"s change in h+ Acid base balance- maintain a particular ph at all times. Co2 + h2o h2co3 h+ + hco3. Stomach acid (hcl) ph: 1. 0; blood ph: 7. 1. Buffers are trying to remove h+ from a particular solution. Larger fluctuations in muscle ph compared to blood ph: more co2, h+ ions in muscle, h+ + co2 diluted in the blood (large volume) High intensity exercise- lactic acid (acidic), lower ph. Hydrogens bind to bicarbonate, and go through the reaction in the opposite direction to give us carbon dioxide and water, which means that co2 will go down in the blood stream, producing lactic acid. H+ released from lactic acid (as ventilation increases) gives us co2. As long as there is bicarbonate available, we can convert h+ to co2. Can transport co2 back to lungs, ph of blood drops, but as we continue to breathe, will eliminate co2 from bloodstream.