digestive system
 |__alimentary canal________
multi-tissue structure      |
 |__alimentary canal________|
multicellular structure     |
 |__multi-tissue structure__|
                            gut  8460 rec.
                             |__adult gut 2173 rec.
                             |   |__adult enterocyte(+) 249 rec.
                             |   |__adult foregut(+) 127 rec.
                             |   |__adult hindgut(+) 152 rec.
                             |   |__adult midgut(+) 1725 rec.
                             |   |__adult midgut-hindgut hybrid zone(+)
                             |   |__adult proventriculus(+) 86 rec.
                             |__embryonic/larval gut 3847 rec.
                             |   |__embryonic/larval foregut(+) 721 rec.
                             |   |__embryonic/larval hindgut(+) 638 rec.
                             |   |__embryonic/larval midgut(+) 2900 rec.
                             |   |__larval caeca region(+) 816 rec.
                             |   |__larval enterocyte(+) 115 rec.
                             |__gut epithelium 1715 rec.
                             |   |__enterocyte(+) 476 rec.
                             |   |__gut epithelial section(+) 1629 rec.
                             |__gut section 8191 rec.
                                 |__adult cibarium(+) 33 rec.
                                 |__adult midgut region(+) 301 rec.
                                 |__adult midgut-hindgut hybrid zone(+)
                                 |__anal imaginal ring 1 rec.
                                 |__anus(+) 54 rec.
                                 |__embryonic midgut chamber(+) 235 rec.
                                 |__embryonic/larval anterior midgut 176 rec.
                                 |__embryonic/larval copper cell region
                                 |__embryonic/larval iron cell region
                                 |__embryonic/larval large flat cell region
                                 |__embryonic/larval posterior midgut(+) 127 rec.
                                 |__esophagus(+) 297 rec.
                                 |__foregut(+) 3730 rec.
                                 |__foregut imaginal ring(+) 34 rec.
                                 |__hindgut(+) 1945 rec.
                                 |__ileum(+) 13 rec.
                                 |__larval anterior-middle midgut junction(+) 1 rec.
                                 |__larval caeca region(+) 816 rec.
                                 |__larval foregut atrium(+) 238 rec.
                                 |__larval hindgut imaginal ring 26 rec.
                                 |__larval midgut alkaline region 3 rec.
                                 |__larval midgut neutral region 3 rec.
                                 |__larval midgut transition region 3 rec.
                                 |__middle midgut(+) 262 rec.
                                 |__midgut(+) 4669 rec.
                                 |__pharynx(+) 294 rec.
                                 |__proctodeum 52 rec.
                                 |__proventriculus(+) 836 rec.
                                 |__pylorus(+) 24 rec.
                                 |__rectum(+) 145 rec.