| medial | http://purl.obolibrary.org/obo/MAT_0000490 | | |
| meristem | http://purl.obolibrary.org/obo/MAT_0000006 | | |
| body ganglion | http://purl.obolibrary.org/obo/MAT_0000344 | | |
| trunk ganglion | http://purl.obolibrary.org/obo/MAT_0000344 | | |
| anal region | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| anus | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| anal pad | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| anal canal | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| cloaca | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| anal region | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| cloacal chamber | http://purl.obolibrary.org/obo/MAT_0000042 | | |
| faeces | http://purl.obolibrary.org/obo/MAT_0000053 | | |
| telencephalon | http://purl.obolibrary.org/obo/MAT_0000421 | | |
| digestive system | http://purl.obolibrary.org/obo/MAT_0000018 | | |
| gastrointestinal system | http://purl.obolibrary.org/obo/MAT_0000018 | | |
| alimentary system | http://purl.obolibrary.org/obo/MAT_0000018 | | |
| male reproductive system | http://purl.obolibrary.org/obo/MAT_0000029 | | |
| male | http://purl.obolibrary.org/obo/MAT_0000029 | | |
| male genital system | http://purl.obolibrary.org/obo/MAT_0000029 | | |
| male genitalia | http://purl.obolibrary.org/obo/MAT_0000029 | | |
| blood plasma | http://purl.obolibrary.org/obo/MAT_0000052 | | |
| gastrula stage | http://purl.obolibrary.org/obo/MAT_0000063 | | |
| gastrula | http://purl.obolibrary.org/obo/MAT_0000063 | | |
| gastrulating mbryo | http://purl.obolibrary.org/obo/MAT_0000063 | | |
| inner cell mass | http://purl.obolibrary.org/obo/MAT_0000250 | | |
| endocardium | http://purl.obolibrary.org/obo/MAT_0000455 | | |
| soft palate | http://purl.obolibrary.org/obo/MAT_0000039 | | |
| mesonephros | http://purl.obolibrary.org/obo/MAT_0000273 | | |
| skin | http://purl.obolibrary.org/obo/MAT_0000284 | | |
| prosencephalon | http://purl.obolibrary.org/obo/MAT_0000105 | | |