| Label | Id | |
|---|---|---|
| embryo late (growth) stage | http://purl.obolibrary.org/obo/MAT_0000399 | |
| embryo mid-stage | http://purl.obolibrary.org/obo/MAT_0000398 | |
| embryonic structure | http://purl.obolibrary.org/obo/MAT_0000019 | |
| endocardium | http://purl.obolibrary.org/obo/MAT_0000455 | |
| endocrine system | http://purl.obolibrary.org/obo/MAT_0000021 | |
| endoderm | http://purl.obolibrary.org/obo/MAT_0000175 | |
| endometrium | http://purl.obolibrary.org/obo/MAT_0000319 | |
| endometrium | http://purl.obolibrary.org/obo/MAT_0000290 | |
| endosperm | http://purl.obolibrary.org/obo/MAT_0000227 | |
| enteric nervous system | http://purl.obolibrary.org/obo/MAT_0000102 | |
| epiblast | http://purl.obolibrary.org/obo/MAT_0000067 | |
| epicranial plate | http://purl.obolibrary.org/obo/MAT_0000017 | |
| epidermis | http://purl.obolibrary.org/obo/MAT_0000154 | |
| epididymus | http://purl.obolibrary.org/obo/MAT_0000130 | |
| epithalamus | http://purl.obolibrary.org/obo/MAT_0000422 |