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Question
Which of the following is the smallest cranial nerve ?
Which of the following is the smallest cranial nerve ?
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Solution
The correct option is D Trochlear
Trochlear nerve is the fourth cranial nerve; a motor nerve, that supplies only superior oblique muscle of the eye. It has following traits :1 ) Smallest cranial nerve in terms of axon2) It has longest intra cranial route3) Only nerve that exists the dorsal aspect of the brainstem .4) It innervates the superior oblique muscle on the opposite side of its origin.Hence answer is B.
Trochlear nerve is the fourth cranial nerve; a motor nerve, that supplies only superior oblique muscle of the eye. It has following traits :
1 ) Smallest cranial nerve in terms of axon
2) It has longest intra cranial route
3) Only nerve that exists the dorsal aspect of the brainstem .
4) It innervates the superior oblique muscle on the opposite side of its origin.
Hence answer is B.
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