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level: Cranial Nerves

Questions and Answers List

level questions: Cranial Nerves

Question	Answer
How many pairs of cranial nerves emerge from the inferior surface of the brain?	12
True/False: All of the nerves except vestibulocochlear nerve pass through foramina of the skull to innervate structures in the head, neck, and facial region.	False. Except VAGUS nerve.
What are the 3 cranial nerves that are associated with special senses of smell, vision, hearing, and equilibrium and have only sensory fibers?	(I) Olfactory (II) Optic (VIII) Vestibulocochlear
What are the 5 cranial nerves that are primarily motor in function but do have some sensory fibers for proprioception?	(III) Oculomotor (IV) Trochlear (VI) Abducens (XI) Accessory (XII) Hypoglossal
What are the 4 cranial nerves that consist of significant amounts of both sensory and motor fibers?	(V) Trigeminal (VII) Facial (IX) Glossopharyngeal (X) Vagus
Are benign fibrous growths that arise from the balance nerve, also called the 8th cranial nerve or vestibulocochlear nerve.	Acoustic neuromas
True/False: Acoustic neuromas are tumors which are non-malignant, meaning that they do not spread or metastasize to other parts of the body.	True
True/False: Location of acoustic neuromas tumors is deep inside the skull, lateral to vital brain centers in the brain stem.	False. ADJACENT to vital brain centers in the brain stem. In majority cases, these grow slowly over a period of years.
How many pairs of spinal nerves emerge laterally from the spinal cord?	31 pairs
Each pair of nerves corresponds to a segment of the cord and they are named and counted as accordingly: __ cervical nerves __ thoracic nerves __ lumbar nerves __ sacral nerves __ coccygeal nerve	8 cervical nerves 12 thoracic nerves 5 lumbar nerves 5 sacral nerves 1 coccygeal nerve