part_of adult alimentary system adult foregut Fig. 7-5, Fig. 7-6, Fig. 7-9, Fig. 7-10, Fig. 7-12;Fig. 7-13, Fig. 7-14, Fig. 7-15, Fig. 7-16, Fig. 7-17, Fig. 7-18, Fig. 14-2, Fig. 14-3, Fig. 14-8, Fig. 14-16, Fig. 14-17, in Biology of Ticks ISBN:0-19-505910-7. Region of the alimentary system comprising the preoral canal (hypostomal groove or gutter), mouth, pharynx, esophagus andproventriculus. TADS:0000186 TADS:0000186 default_namespace anatomical system