Cranial Nerve Examination Aaqid Akram MBChB (2013) Clinical Education Fellow
Anatomy and Physiology
Olfactory (I) Smell
Optic (II) Visual Acuity Visual Fields Pupillary Light reflex (Consensual/Direct) Accomodation Fundoscopy Blind Spot Sensory Inattention
Occulomotor (III) / Trochlear (IV) / Abducens (VI) Eye movements using the letter H Nystagmus Diplopia LR 6 SO 4
Trigeminal (V) Sensation to face Muscles of mastication Jaw Jerk Corneal Response
Facial (VII) Taste Abnormal face movements Raise eyebrows Screw eyes Blow out cheeks Show teeth Smile
Vestibulocochlear (VIII) Air Conduction > Bone conduction Rinne’s Weber’s Balance
Glossopharyngeal (IX) / Vagus (X) Posterior third tongue sensation Gag reflex Cough / Swallow Uvula deviation (away from lesion)
Spinal Accessory (XI) Shrug Shoulders against resistance (Trapezius) Turn head o right/left against resistance (SCM)
Hypoglossal (XII) Tongue movement Fasciculation / Wasting Protrude tongue (deviation towards lesion) Move tongue right to left quickly Tongue power against cheek resistance
NumeralNerve IOlfactory IIOptic IIIOcculomotor IVTrochlear VTrigeminal VIAbducens VIIFacial VIIIVestibulocochlear IXGlossopharyngeal XVagus XISpinal Accessory XIIHypoglossal