MEDICINE MCQ
NEUROLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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N1 is the olfactory nerve for smell sensation N2 is the opticus of the eye
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N3 is oculomotor, N4 is trochlear, N6 is abducens
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N5 is trigeminal, N7 is facial and N8 is auditory
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N9 is hypoglosus N10 is vagus and N11 is accessory N12 Hypoglosus (can tell central or peripheral)
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Detailed explanation-1: -The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve.
Detailed explanation-2: -Specifically, the spinal accessory nerve provides somatic motor innervation to the sternocleidomastoid and trapezius muscles, while the hypoglossal nerve provides somatic motor innervation to almost all the muscles of the tongue.
Detailed explanation-3: -Here’s the jugular foramen, with the hypoglossal canal opening just in front of it. Nerves IX, X and XI emerge through this part of the jugular foramen. Here are the four nerves emerging in front of the upper end of the internal jugular vein.