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nursing

Remember the Cranial Nerves?

Remember the Cranial Nerves?

I: Olfactory:๐Ÿ‘ƒ
Close eyes and guess the smell of the item
Ex: alcohol

II: Optic: ๐Ÿ‘“
Distant vision tested with the Snellen chart: 20/20, 20/80, 20/200
20/200 means: at 20 feet, the patient can see what a patient with normal vision can see
at 200 feet

CN III: Oculomotor ๐Ÿ‘€
Eye movements, pupillary constriction, accommodation
Eye movements: most eye movements are controlled by CN III
Pupillary constriction: direct and consensual
Accommodation: near focusing of the eye

IV: Trochlear ๐Ÿ™„
Responsible for movement of the superior oblique muscle

CN V: Trigeminal ๐Ÿ˜‘๐Ÿ˜€
Supplies sensation to the face, the nasal and buccal mucosa, and the teeth
Motor division responsible for mastication

VI: Abducens ๐Ÿ‘€โ†”๏ธ
Responsible for movement of the lateral rectus muscle

VII: Facial ๐Ÿ˜
Innervates the facial muscles and supplies taste to the anterior 2/3 of tongue

VIII: Vestibulocochlear ๐Ÿฆป
Responsible for hearing, balance, and awareness of position

IX: Glossopharyngeal ๐Ÿ‘…๐Ÿคฎ
Supplies sensation to the pharynx, posterior 1/3 of the tongue, and tympanic membrane

X: Vagus ๐Ÿ˜€
Supplies parasympathetic fibers to the viscera of the chest, abdomen; motor fibers to the
pharynx, larynx; sensory fibers to the ear, meninges, viscera
Able to talk and swallow

XI: Spinal Accessory ๐Ÿคท๐Ÿปโ€โ™€๏ธ
Motor nerve supplying the sternocleidomastoid and trapezius muscles

XII: Hypoglossal ๐Ÿ‘…
Supplies motor fibers to the muscles of the tongue
Observe for fasciculations when patient sticks tongue out .

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About Junette

About Junette

I'm an educator and mentor helping student nurses and fellow nurses as well as NP's navigate their way in the medical world. Follow me on Instagram or share my articles if you learned something today. :)

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