part_of adult female tubular accessory glands adult TAG duct Fig. 16-2, in Biology of Ticks ISBN:0-19-505910-7. TADS:0000448 TADS:0000448 TAG This is the narrow neck-like region of the gland that serves as the connecting duct between the bulbous glandular portion of the gland and the point where it joins the junction of the cervical and vestibular vagina. default_namespace