BIO202H5 Lecture Notes - Lecture 3: Carbonic Anhydrase, Vasoconstriction, Countercurrent Exchange
Document Summary
The figure caption should be below the figure instead of above since it is not a title. There is evident difference in the respiratory tissue thickness between different animals. The little line on the top is the standard deviation: they are not that close to the bar which means that the standard deviation is significant. When birds breathe in and out there is little change in the rigidity of the membranes. Waterflow across the gills is opposite to the water flow back to the body. This allows the fish to uptake as much oxygen as possible from the water at any time. Countercurrent flow between blood that is high in oxygen and blood that is low in oxygen. The creation of high and low pressure systems. When the mouth is sucked up, the nostrils are closed, and the air that is kept in the cheek pouch can be pushed into the lungs.
