| Name: | midbrain hindbrain boundary | 
|---|---|
| Synonyms: | isthmus, mhb, midbrain-hindbrain boundary | 
| Definition: | The boundary between the mesencephalon and the rhombencephalon. | 
| Ontology: | Anatomy Ontology [ZFA:0000042] | 
| Name: | blood vessel | 
|---|---|
| Synonyms: | |
| Definition: | Any of the tubular multi-tissue structures through which blood circulates in the body. | 
| Ontology: | Anatomy Ontology [ZFA:0005314] |