(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.

Fig. 4. (A) Stage-dependent changes in fictive lung burst frequency during bath
application of the
1-adrenoceptor agonist phenylephrine
(Phe; 25 µmol l–1). (B,C) The effects of Phe application
on lung burst frequency in the presence of the GABAA/glycine
antagonist mixture (bicuculline 1.25 µmol l–1/strychnine
1.5 µmol l–1) in (B) the pre-metamorphic and (C) adult
groups (N=6, each group). Values are means ± s.e.m.
*Values statistically different from baseline at
P<0.05.