Question

The purely motor cranial nerve is___________.

• A. Facial
• B. Vagus
• C. Trigeminal
• D. Spinal accessory

Answer 1

The correct option is D Spinal accessory

The details of following nerves are:

- Facial Nerve: Seventh cranial nerve- mixed nerve (Motor+Sensory)

-Vagus Nerve: Tenth cranial nerve- mixed nerve (Motor+Sensory)

-Trigeminal Nerve: Fifth cranial nerve-mixed (Motor+Sensory)

-Spinal accessory Nerve: Eleventh cranial nerve- Motor nerve, The cranial part of the accessory nerve is classified as a branchial motor nerve, supplying the muscles of the soft palate. The spinal part is classified as somatic motor supplying sternocleidomastoid and trapezius.

So, the correct answer is 'Option D- Spinal accessory'.