Examination of the cranial nerves

Question 1

which nerve is tested for by occluding one nostril at a time and stimulating the other one with a non irritating stimulant while the patient closes their eyes

a.I olfactory
b.II optic
c.III oculomotor
d.IV trochlear
e.VI Adducens

Answer 1

a.I olfactory

Question 2

which nerve is tested by inspection of the eyes,
visual acuity,
visual fields ,
colour vision
fundoscopy
observation of pupil size equality and pupillary response

a.I olfactory
b.II optic
c.III oculomotor
d.IV trochlear
e.VI Adducens

Answer 2

b.II optic

Question 3

which nerves are tested by extra ocular movements
eg examiner 1m away and asks patient to follow finger in an x and ……….. pattern
enquiring about double vision

a/optic , olfactory , oculomotor

b.oculomotor, trochlear, trigeminal

c.oculomotor, trochlear, abducens

Answer 3

c.oculomotor, trochlear, abducens

Question 4

what nerve is tested for by

motor function - clenched jaw palpation of temporals and masseter muscles , resistance to jaw closing and jaw jerk reflex

sensory function - touch forehead cheek and chin with cotton wool ask if can feel both sides

corneal reflex - ask patient to look opposite and use cotton wisp to stimulate edge of cornea observe direct and consensual

a.optic
b.olfactory
c.oculomotor
d.trochlear
e.trigeminal

Answer 4

e.trigeminal

Question 5

which nerve is assessed by observing the face for involuntary movements, asking patient to wrinkle their forehead, close eyes tightly , smile, show teeth, puff out cheeks and observe for symmetry

special sensory - ask patient to protrude tongue, close eyes and apply one of 5 tastes (sweet sour salt bitter msg)

a.optic
b.olfactory
c.oculomotor
d.facial
e.trigeminal

Answer 5

d.facial

Question 6

which nerve is tested for by the whisper tests and rings and Webbers test (cochlear ) and observation for nystagmus when extra ocular movements assessed (vestibular)

a.vestibulocochlear
b.olfactory
c.oculomotor
d.facial
e.trigeminal

Answer 6

a.vestibulocochlear

Question 7

which nerve is tested for by asking the patient to say ah and observing palatal movement and assessing the gag reflex gently stroking soft palate on each side and observing swallowing of water

a.vestibulocochlear
b.glossopharyngeal and vagus
c.oculomotor
d.facial
e.trigeminal

Answer 7

b.glossopharyngeal and vagus

Question 8

which nerve is assessed by observing muscles of the neck and shoulder asking patients to shrug and against resistance and laterlally flex their neck on both sides and flex forwards against resistance

Question 9

which nerve is assessed by observing muscles of the neck and shoulder asking patients to shrug and against resistance and laterlally flex their neck on both sides and flex forwards against resistance

a.vestibulocochlear
b.glossopharyngeal and vagus
c.oculomotor
d.acessory
e.trigeminal

Answer 9

d.acessory

Question 10

which nerve is assessed by observing the tongue at rest in the mouth for asymmetry , atrophy or fasciculation , asking patient to push tongue into each cheek and protrude it

a.vestibulocochlear
b.glossopharyngeal and vagus
c.oculomotor
d.acessory
e.hypoglossal

Answer 10

e.hypoglossal