| Term Name: | isthmic primary nucleus | 
|---|---|
| Synonyms: | isthmic primary nuclei, isthmic primary sensory trigeminal nucleus | 
| Definition: | Sensory trigeminal nucleus located in the most rostral position. It lies immediately caudal to the secondary gustatory nucleus. | 
| Appears at: | Unknown | 
| Evident until: | Adult (90d-730d, breeding adult) | 
| Ontology: | Anatomy Ontology [ZFA:0000222] | 
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