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 .

Posted by:Van

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