Ophthalmology All of them are true about the 4th nerve EXCEPT A The only nerve to emerge from the dorsal aspect of brain B The only nerve to cross over to opposite side C It is the thickest cranial nerve D It has the fewest axons of any cranial nerve 💡 Explanation All of them are true about the 4th nerve EXCEPT ✓ Correct Answer: C. It is the thickest cranial nerve