Fig. 9
Forepart behind the bridle and the innervation of the dorsal furrow. a, b, c. Innervation of the two types of glands (glandular belt and glandular ribbon) in the forepart by the dorsal nerve. d, e, g. Sensory cells of the dorsal furrow. Successive partial Z-projections showing the plexus (d) and sensory cilia (e). g. A virtual sagittal section through the same region. f. Secretory cells of the glandular belt with underlying neurites, virtual sagittal section. h. A neuron from the area of the dorsal furrow. Abbreviations: df – dorsal furrow, dn – dorsal nerve, gb – glandular belt, gr – glandular ribbon, og – opening of the gland duct, sci – sensory cilia, sp – sensory cell perikarya. Acetylated α-tubulin-lir – magenta, 5HT-lir – green, muscles – yellow (phalloidin staining), cell nuclei – light blue (DAPI staining)