http://upload.wikimedia.org/wikipedia/commons/f/f7/Gray472.png

Note we define this generically to include invertebrates (partly for consistency with GO), but the class may be split in future (vertebrates have some contribution from NC - https://github.com/obophenotype/uberon/wiki/The-neural-crest). We may explicitly make this a developmental class

the caudal portion of the primitive digestive tube of the embryo

in FMA this class has no children. In MA it has a single child hindgut epithelium

uberon

metenteron

The bilaterian gut is typically a complete tube that opens to the exterior at both ends. It consists of mouth, foregut, midgut, hindgut, and anus (reference 1); Although all vertebrates have a digestive tract and accessory glands, various parts of this system are not necessarily homologous, analogous, or even present in all species. Therefore, broad comparisons can be best made under the listings of headgut, foregut, midgut, pancreas and biliary system, hindgut (reference 2).[well established][VHOG]

UBERON:0001046

• lumen of hindgut

• pectinate line
• anterior intestinal portal

• lower digestive tract
• sigmoid colon
• descending colon
• terminal part of digestive tract
• left colon

• mesentery of hindgut
• epithelium of hindgut
• tailgut
• lumen of hindgut
• mesenchyme of hindgut