Trochlear nerve

[forEBM]

This is probably a stupid question so I apologize ahead of time.
CN IV is the only motor cranial nerve to innervate a target on the side of the body contralateral to its nucleus. So is the it called left or right based on it's nucleus or based on the eye it innervates?

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[tasar1898]

Wow I am finished with Step 1 and I just noticed this information... My guess is that Left Cranial Nerve innervates Left Eye , since it immediately decussates after leaving the nucleus , there is not much ''nerve'' at the right

Alas , if you had right brain stem stroke at CNIV level (midbrain) , then the SO pathology would arise at the left eye .. Thats the only importance imo