(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 3


Fig. 3. The effects of NA bath application (5 µmol l-1) on fictive lung (A,C) and buccal (B,D) ventilation frequencies in the presence of the selective {alpha}-adrenoceptor antagonist prazosine (Pra; 0.5 µmol l-1; A,B) or the selective {alpha}2-adrenoceptor antagonist RX821002 (RX; 25 µmol l-1; C,D). These experiments were performed on brainstem preparations from pre-metamorphic tadpoles (grey bars) and adult bullfrogs (black bars). *Values statistically different from baseline at P<0.05. **Values statistically different from baseline at P<0.10.