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. [ GOC:cls http://purl.obolibrary.org/obo/go/references/0000021 GOC:dph GOC:dgh GOC:jid https://www.worldcat.org/search?q=bn%3A0838580343 ]

Synonyms: cranial nerve IV development cranial nerve 4 development

This is just here as a test because I lose it