| anal pad | http://purl.obolibrary.org/obo/MAT_0000042 | anal region | |
| adult alimentary canal | http://purl.obolibrary.org/obo/MAT_0000043 | intestine | |
| intestines | http://purl.obolibrary.org/obo/MAT_0000043 | intestine | |
| gut | http://purl.obolibrary.org/obo/MAT_0000043 | intestine | |
| intestine | http://purl.obolibrary.org/obo/MAT_0000043 | intestine | |
| duodenum | http://purl.obolibrary.org/obo/MAT_0000044 | duodenum | |
| jejunum | http://purl.obolibrary.org/obo/MAT_0000045 | jejunum | |
| large intestine | http://purl.obolibrary.org/obo/MAT_0000046 | large intestine | |
| posterior intestine | http://purl.obolibrary.org/obo/MAT_0000046 | large intestine | |
| hindgut | http://purl.obolibrary.org/obo/MAT_0000046 | large intestine | |
| mid intestine | http://purl.obolibrary.org/obo/MAT_0000047 | small intestine | |
| anterior intestine | http://purl.obolibrary.org/obo/MAT_0000047 | small intestine | |
| small intestine | http://purl.obolibrary.org/obo/MAT_0000047 | small intestine | |
| oesophagus | http://purl.obolibrary.org/obo/MAT_0000048 | oesophagus | |
| esophagus | http://purl.obolibrary.org/obo/MAT_0000048 | oesophagus | |
| pharynx | http://purl.obolibrary.org/obo/MAT_0000049 | pharynx | |
| rectal sac | http://purl.obolibrary.org/obo/MAT_0000050 | rectum | |
| rectum | http://purl.obolibrary.org/obo/MAT_0000050 | rectum | |
| stomach | http://purl.obolibrary.org/obo/MAT_0000051 | stomach | |
| blood plasma | http://purl.obolibrary.org/obo/MAT_0000052 | blood plasma | |
| faeces | http://purl.obolibrary.org/obo/MAT_0000053 | faeces | |
| hemolymph | http://purl.obolibrary.org/obo/MAT_0000054 | hemolymph | |
| haemolymph | http://purl.obolibrary.org/obo/MAT_0000054 | hemolymph | |
| lymph | http://purl.obolibrary.org/obo/MAT_0000055 | lymph | |
| milk | http://purl.obolibrary.org/obo/MAT_0000056 | milk | |
| semen | http://purl.obolibrary.org/obo/MAT_0000057 | seminal fluid | |
| seminal fluid | http://purl.obolibrary.org/obo/MAT_0000057 | seminal fluid | |
| urine | http://purl.obolibrary.org/obo/MAT_0000058 | urine | |
| branchial arch | http://purl.obolibrary.org/obo/MAT_0000059 | branchial arch | |
| pharyngeal arch | http://purl.obolibrary.org/obo/MAT_0000059 | branchial arch | |