Fig. 3 in The plastic nervous system of Nemertodermatida

Fig. 3 Confocal laser scanning microscope images of Flagellophora cf. apelti. a–c FMRFamide IR pattern in the anterior end of the body and broom canal innervation. Note rather large unstained cells lining the canal and FMRFamide IR local nerve nets around the canal in b. d–g Apha-tubulin IR pattern. d Overview of the dorsal side of a specimen with broom organ, bursa, sperm packages. e Overview of the ventral side showing the mouth opening and subterminal male copulatory organ. f Broom organ, note the parallel tubulin IR strands in its proximal part and the coiled strands in the distal part. g Another optical section of the same animal, showing a wide brain neuropile enveloping the proximal part of the broom. Note the presence of numerous neurons with long processes surrounding the brain on the outside. Also note a group of IR neurons near the distal end of the broom. h 5-HT IR elements of the anterior part of the body, dorsal side on the right. Note