Click on image to view larger version.

Fig. 3. Effects of (A) serotonin (5-HT), (B) octopamine (OA), (C) norepinephrine
(NE), (D) glutamate (Glu) and (E) proctolin (Proc) on arterial pressure of the
anterior median artery (AMA), anterior lateral artery (ALA) and fifth lateral
artery (LA5). In B, C and E, the first (top) and second traces show
simultaneous recordings of pressure pulses of AMA and mechanograms of
heartbeat, respectively. Other traces show arterial pressure alone recorded
from preparations without heartbeat. Scale bars, 30 s.