Cranial nerve Flashcards
Contralateral III nerve palsy lesion in
Mid-brain
Contralateral VI VII lesion in
Pont
Contralateral XII, IX, XI lesion in
Medulla
Monocular field defect lesion in
anterior to optic chiasm
Bitemporal field defect lesion
at the optic chiasm
Homonymus field defect lesion
behind the optic chasm
Congruous homonymous field defect
behind the lateral geniculate bodies
Horner syndrome
Miosis, partial ptosis, enophtalmos, loss of hemifacial sweating
Bitemporal hemianopsia lower quadrant>upper lesion
superior chiasmal compression
Bitemporal hemianopsia upper quadrant> lower lesion
inferior chiasmal compression
Upper homonymous quadrantanopsia lesion
temporal lobe
lower homonymous quadrantanopsia lesion
parietal lobe
Homonymous hemianopsia incongruous lesion
optic tract
homonymous hemianopsia congruous lesion
behind lateral geniculate body
Macula sparing
Occipital cortex
Control of saccadic movement
Frontal lobe
Control of pursuit movement
Occipital lobe
Control of vestibular-positional movement
Cerebellar vestibular nuclei
Control of convergence movement
Midbrain
One eye deviated downwards and out with ptosis lesion in
III nerve
Hypometric sacados in the eye lesion
Cerebellar lesion
Forehead is preserved in ——- weakness
Upper motor neuron facial weakness
taste anterior 2/3 of tongue
VII
Sjögren’s syndrome
Trigeminal sensory neuropathy
Loss of light touch with ipsilateral hemisensory loss of light touch lesion in
parietal lobe
Loss of light touch with no other loss lesion in
pons
Loss of pinprick and temperature with contralateral loss of these on the body
Ipsilateral brainstem lesion
Failure of the patient to smile
Emotional paralysis due to Parkinsonisms
Guillain Barré
Bilateral LMN weakness
Weakness of jaw opening
Unilateral lesion of motor V
Loss of sensory in all modalities
Herpes Zooster
Small tongue with fasciculations
Bilateral lower motor neuron lesion
Small tongue with reduced speed of movements
Bilateral upper and lower motor neuron lesions
Tongue deviates to one side
weakness on that side
Tongue deviates to one side with unilateral wasting and fasciculation
unilateral LMN
Tongue deviates to one side with normal bulk
unilateral UMN
Tongue moves in and out on protrusion
Cerebellar disease, essential tremor, extrapyramidal syndromes
Hallpike test fatigable rotatory nystagmus
Positional vertigo
Hallpike test non-fatigable nystagmus without delay
central vestibular syndrome
Uvula moves to one side
upper or lower motor lesion of vagus on the other side
uvula doesn’t move
bilateral palate muscle paresis
uvula moves on saying ahh but nor on gag
IX palsy
Gradual onset cough-bovine cough
vocal cord palsy
Bubbly voice and cough
cord palsy
Swallow followed by coughing
X nerve lesion
Unilateral cord palsy
Laryngeal palsy or vagal lesion
Bilateral pharyngeal weakness
Miastenia gravis
Bilateral vocal cord weakness
Miastenia gravis
weakness of sternocleido and trapezius on the same side
Peripheral accessory palsy. Jugular foramen lesion
Weakness of ipsilateral esternocleidomastoideo and contralateral trapezius
UPN weakness ipsilateral
Unilateral delayed shoulder shrug
Contralateral UMN lesion
Bilateral weakness of sternocleido
Myopathy or motor neuron disease