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Question

Which of the following cranial nerve of man is both sensory and motor?

A
Olfactory
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B
Trigeminal
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C
Optic
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D
Auditory
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Solution

The correct option is B Trigeminal
There are four cranial nerves that carry out both sensory as well as motor functions. They are trigeminal (V), facial (VII), glossopharyngeal (IX) and vagus (X).
The trigeminal nerves are the largest of cranial nerves which forms three branches; ophthalmic, maxillary and mandibular. It is both sensory and motor in function. Sensory functions include relating information of touch, pain and temperature of the face. Motor functions include control of muscles for chewing.

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