Which one of the following cranial nerve is carrying the nerve fibres originating from Edinger-westphal nucleus?

Oculomotor

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Trochlear

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Abducens

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Vagus

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Solution

The correct option is B Oculomotor
The Edinger–Westphal nucleus is also known as the accessory oculomotor nucleus is the parasympathetic pre-ganglionic nucleus that innervates the iris sphincter muscle and the ciliary muscle. It is a part of the parasympathetic nervous system which mainly helps in dilation of pupils.
So, the correct answer is option A.

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