part_of part of part of contained in develops_from develops from existence overlaps existence starts during or after material entity anatomical entity anatomical entity Stage 5 Stage 6 Stage 7 Stage 8 gut PMID:28461239 https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4632 PMID:24120894 PMID:26062938 PMID:28072387 PMID:26114597 digestive tract PMID:30471994 PMID:19174194 PMID:27441386 PMID:21566185 PMID:17942485 PMID:30962434 PMID:24063805 ISBN:9780070316607 Planarian_Anatomy PMID:27551436 PMID:23318641 PMID:28216315 PMID:18287199 PMID:27542689 PMID:20865784 PMID:21566195 The planarian triclad gut contains a central anterior gut branch connected to two posterior gut branches arranged around the pharynx. Secondary gut branches extend laterally from the primary gut branches, while tertiary gut branches extend from the secondary branches. Food and waste enter and exit the gut through the pharynx. PMID:21828097 https://doi.org/10.1101/279364 PMID:29674432 PMID:29674431 PMID:19933103 PMID:29906446 PMID:23903188 PMID:27150006 PMID:23318635 PMID:24173799 PMID:28292427 PMID:25254346 PMID:29158443 PMID:22899852 PMID:22451003 PMID:20707997 PMID:22411224 intestinal tract PMID:27864883 PMID:28807897 PMID:27501047 PMID:28287248 PMID:26556349 PMID:24992682 PMID:19247960 PMID:26651295 adult gut PMID:21806978 PMID:24040508 PMID:21458439 PMID:21179478 PMID:25356635 definitive gut PMID:30383829 gastrovascular tract PMID:27240733 PMID:24238224 PMID:21664348 gastrovascular digestive tract PMID:22439894 PMID:28686611 PMID:30143032 blind gut triclad gut PMID:27163480 PMID:30194301 PMID:24415944 PMID:27122174 PMID:29547123 PMID:23250205 PMID:23235145 PMID:26457503 PMID:21282632 three-branched gut PMID:30297872 PMID:23405188 PMID:21356107 PMID:24737865 PMID:18063757 PMID:24950970 PMID:25017721 PMID:29100657 PMID:30282036 PMID:25558068 PMID:23954785 PMID:25956527 PMID:27074666 PMID:28245923 PMID:27063937 PMID:17553481 PMID:27034770 gut PMID:27612382 intestine PMID:27612384 PMID:20967238 PMID:23079596 gamma neoblast digestive system anterior region of the whole animal dorsal region of the whole animal posterior compartment of the whole animal juvenile head prepharyngeal region parapharyngeal region tail organ adult hermaphrodite asexual adult copulatory region