| Name: | cranial nerve IV |
|---|---|
| Synonyms: | CN-IV, trochlear, trochlear nerve |
| Definition: | Cranial nerve that innervates the oculomotor system. The trochlear nerve is the only motor nerve to project dorsally and then cross the midline before exiting the neuroepithelium and re-orienting ventrally to project to the contralateral superior oblique extraocular muscle. |
| Ontology: | Anatomy Ontology [ZFA:0000600] |
| Name: | trochlear nerve development |
|---|---|
| Synonyms: | CN IV development, cranial nerve 4 development, cranial nerve IV development |
| Definition: | The process whose specific outcome is the progression of the trochlear nerve over time, from its formation to the mature structure. The trochlear nerve is a motor nerve and is the only cranial nerve to exit the brain dorsally. The trochlear nerve innervates the superior oblique muscle. |
| Ontology: | GO: Biological Process [GO:0021558] QuickGO AmiGO |