The smallest cranial nerve in human beings is

Trochlear

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Opthalmic

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Abducens

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Vagus

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Solution

The correct option is A Trochlear
The trochlear nerve is unique among the cranial nerves in several respects. It is the smallest nerve in terms of the number of axons it contains. It has the greatest intracranial length. Finally, it is the only cranial nerve, that exits from the dorsal aspect of the brainstem.

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