digestive system
 |__alimentary canal________
multi-tissue structure      |
 |__alimentary canal________|
multicellular structure     |
 |__multi-tissue structure__|
                            gut  7946 rec.
                             |__adult gut 1790 rec.
                             |   |__adult foregut(+) 102 rec.
                             |   |__adult hindgut(+) 119 rec.
                             |   |__adult midgut(+) 1457 rec.
                             |   |__adult midgut-hindgut hybrid zone(+)
                             |   |__adult proventriculus(+) 70 rec.
                             |__embryonic/larval gut 3795 rec.
                             |   |__embryonic/larval foregut(+) 713 rec.
                             |   |__embryonic/larval hindgut(+) 627 rec.
                             |   |__embryonic/larval midgut(+) 2870 rec.
                             |   |__larval caeca region(+) 807 rec.
                             |   |__larval enterocyte(+) 115 rec.
                             |__gut epithelium 1365 rec.
                             |   |__enterocyte(+) 377 rec.
                             |   |__gut epithelial section(+) 1295 rec.
                             |__gut section 7710 rec.
                                 |__adult cibarium(+) 33 rec.
                                 |__adult midgut region(+) 191 rec.
                                 |__adult midgut-hindgut hybrid zone(+)
                                 |__anal imaginal ring 1 rec.
                                 |__anus(+) 48 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(+) 291 rec.
                                 |__foregut(+) 3657 rec.
                                 |__foregut imaginal ring(+) 34 rec.
                                 |__hindgut(+) 1893 rec.
                                 |__ileum(+) 13 rec.
                                 |__larval anterior-middle midgut junction(+) 1 rec.
                                 |__larval caeca region(+) 807 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(+) 194 rec.
                                 |__midgut(+) 4313 rec.
                                 |__pharynx(+) 287 rec.
                                 |__proctodeum 51 rec.
                                 |__proventriculus(+) 819 rec.
                                 |__pylorus(+) 20 rec.
                                 |__rectum(+) 139 rec.