Figure 5From: Distribution of serotonergic and dopaminergic nerve fibers in the salivary gland complex of the cockroach Periplaneta americanaSerotonergic nerve fibers in nerves that interlink adjacent acini Whole-mounts of salivary glands were double-labeled with anti-serotonin (red) and BODIPY FL phallacidin (blue), and imaged by confocal microscopy. Nerves of large (broad arrows) or small (long arrows) diameter interlink the acinar lobules (asterisks) and contain serotonergic fibers. Scale bar = 50 μmBack to article page