Answers Latest Update 2025-2026
Abduc
ens
Motor
Evaluated with III and IV
Cranial Nerve VI (six) Eye movement, pupil size,
eyelid opening Inspect eyelid
for drooping
Inspect pupil size and equality
Test consensual response and
accommodation Test extra-
ocular eye movement
So tested thru PERLA and six cardinal fields
Facial
Mixed (both sensory
and motor) Facial
Cranial Nerve VII (seven)
expressions and
taste
Inspect facial symmetry
Test tongue for salt
and sweet Assess smile,
frown, puff out cheeks
Acou
stic
Sens
Cranial Nerve VIII (eight)
ory
Hearing and balance
Test hearing (whisper test)
Compare bone and
air conduction Test
for sound
, lateralization
Glossopharyngeal
Mixed (both sensory
Cranial Nerve IX (nine) and motor) Taste and
swallowing
Test tongue for sour
and bitter Test gag
reflex and swallowing
Olfactor
y Sense
Cranial Nerve I (one)
of smell
Sensory
Test for odor identification (rule out nasal obstruction)
Optic
Sensory and visual
Cranial Nerve II (two) acuity Test for
visual acuity
Test visual fields
Perform ophthalmologic exam
Oculomo
tor
Motor
Evaluated with IV and VI
Eye movement, pupil size,
Cranial Nerve III (three) eyelid opening Inspect eyelid
for drooping
Inspect pupil size and equality
Test consensual response and
accommodation Test extra-
ocular eye movement
So tested thru PERLA and six
cardinal fields Eyelid
dooping/palsy is cranial nerve
III