part_of adult body adult male reproductive system adult male accessory gland Fig. 17-1, Fig. 17-2, Fig. 17-3, Fig. 17-4, in Biology of Ticks ISBN:0-19-505910-7. TADS:0000501 TADS:0000501 The very large, multilobed gland in the center of the body, with connections to the vasa deferentia and the seminal vesicle. The male accessory gland is responsible for the production of the seminal fluid and formation of the spermatophore (For histology of the gland, see Figures 17.9 and 17.10, Biology of Ticks, 0-19-505910-7). default_namespace compound organ