| Label | Id | |
|---|---|---|
| pectoral girdle | http://purl.obolibrary.org/obo/MAT_0000181 | |
| pelvic girdle | http://purl.obolibrary.org/obo/MAT_0000182 | |
| penis | http://purl.obolibrary.org/obo/MAT_0000186 | |
| pericardial sac | http://purl.obolibrary.org/obo/MAT_0000454 | |
| pericardium | http://purl.obolibrary.org/obo/MAT_0000454 | |
| peripheral nerve | http://purl.obolibrary.org/obo/MAT_0000099 | |
| peripheral nervous system | http://purl.obolibrary.org/obo/MAT_0000338 | |
| peripheral nervous system - human | http://purl.obolibrary.org/obo/MAT_0000099 | |
| pharyngeal arch | http://purl.obolibrary.org/obo/MAT_0000059 | |
| pharyngeal arch | http://purl.obolibrary.org/obo/MAT_0000242 | |
| pharyngeal nervous system | http://purl.obolibrary.org/obo/MAT_0000341 | |
| pharynx | http://purl.obolibrary.org/obo/MAT_0000049 | |
| phloem | http://purl.obolibrary.org/obo/MAT_0000364 | |
| phyllid | http://purl.obolibrary.org/obo/MAT_0000276 | |
| pigment | http://purl.obolibrary.org/obo/MAT_0000159 |