Anatomy Which of the following is not true about the Trochlear nerve: A Has the longest intracranial course B Supplies the ipsilateral superior oblique muscle C Only cranial nerve that arises from the dorsal aspect of the brainstem D Enters orbit through the superior orbital fissure outside the annulus of Zinn 💡 Explanation Which of the following is not true about the Trochlear nerve: ✓ Correct Answer: B. Supplies the ipsilateral superior oblique muscle