Term: midbrain hindbrain boundary anatomical structure
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: anatomical structure
Synonyms: anatomical structures
Definition: Zebrafish anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome.
Ontology: Anatomy Ontology [ZFA:0000037]