Cranial Nerves Flashcards
Mnemonic to remember cranial nerve names
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Mnemonic to remember cranial nerve functions
Sensory, Motor, or Both
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Cranial Nerve I
Olfactory
Smell sensory nerve
Cranial Nerve II
Optic
Vision-associated nerves
Cranial Nerve III
Oculomotor
4/6 extrinsic eye muscle nerves
Cranial Nerve IV
Trochlear
Motor: innervates extrinsic eye muscle that depresses the eye and turns it laterally (superior oblique)
Cranial Nerve V
Trigeminal
Sensory fibers to face and motor fibers to chewing muscles
Cranial nerve VI
Abducens Nerve
Motor: innervates extrinsic eye muscle that abducts the eye (lateral rectus)
Cranial Nerve VII
Facial
Both: innervates muscle for facial expression, contributes to taste
Cranial Nerve VIII
Vestibulocochlear
Sensory: contributes to hearing and balance
Cranial Nerve IX
Glossopharyngeal
Both: innervates tongue for taste and general senses, innervates pharynx for general senses, innervates muscles of pharynx for swallowing
Cranial Nerve X
Vagus
Both: Fibers extend to and supply sensory and motor fibers to the organs of the thorax and abdomen
Cranial Nerve XI
Spinal Accessory
Motor: supplies motor fibers to muscles that move the head and neck
Cranial Nerve XII
Hypoglossal
Motor: Innervates muscles of the tongue and under the tongue to allow movement of tongue for chewing, speech, swallowing