(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. 3. Blood flow over the (A,B) dorsal and (C,D) abdominal skin of one thermally
non-challenged pigeon (Columba livia). (A) Control. (B) Nitric oxide
(NO) gel treatment. (C) Control. (D) NO gel treatment. BPU, blood perfusion
unit. The arrow denotes the time of gel application. Stabilized blood flow
over a 10-min period is presented as charts based on raw numerical flow
data.