| A | B |
|---|
| CN I | Olfactory Nerve |
| CN II | Optic Nerve |
| CN III | Oculomotor Nerve |
| CN IV | Trochlear Nerve |
| CN V | Trigeminal Nerve |
| CN VI | Abducens Nerve |
| CN VII | Facial Nerve |
| CN VIII | Vestibulocochlear Nerve (Auditory Nerve) |
| CN IX | Glossopharyngeal Nerve |
| CN X | Vagus Nerve |
| CN XI | Spinal Accessory Nerve |
| CN XII | Hypoglossal Nerve |
| Smell | Cranial Nerve I (olfactory) |
| Visual Acuity | Cranial Nerve II (optic) |
| Visual Fields | Cranial Nerve II (optic) |
| Pupil Reaction to light | Both Cranial Nerve II and III (optic and oculomotor) |
| Lateral Eye Movements | CN VI (abducens) |
| Upward Eye Movements | Cranial Nerve III (oculomotor) |
| Downward Eye Movements | Cranial Nerve III (oculomotor) |
| Pain and Temperature of the Face | Cranial Nerve V (trigeminal) |
| Raising eyebrows, tightly closing eyes, and smile | Cranial Nerve VII (facial) |
| Hearing | Cranial Nerve VIII (auditory) |
| Corneal Reflex | Cranial Nerve V and VII (trigeminal and facial) |
| Taste anterior 2/3's of tongue | Cranial Nerve VII (facial) |
| Balance | Cranial Nerve VIII (vestibular) |
| Gag Reflex | Cranial Nerve IX and X (glossopharyngeal and vagus) |
| Shoulder shrug and head turning | Cranial Nerve XI (spinal accessory) |
| Tongue protrusion | Cranial Nerve XII (hypoglossal) |
| Weber's Test | Tuning fork on the top of the head, midline |
| Rinne's Test | Air Conduction > Bone Conduction |
| Conduction hearing loss (think Blockage) | Bone Conduction > Air Conduction |
| Sensorineural hearing loss | Air Conduction > Bone Conduction |
| Diplopia | Can be caused by cranial III, IV, or VI dysfunction |
| Bell's palsy | Cranial Nerve VII (facial nerve) dysfunction |
| Superior Rectus muscle | Cranial Nerve III (oculomotor) |
| Lateral Rectus muscle | Cranial Nerve VI (abducens) |
| Superior Oblique muscle | Cranial Nerve IV (trochlear) |
| Inferior Oblique muscle | Cranial Nerve III (oculomotor) |
| Medial rectus muscle | Cranial Nerve III (oculomotor) |
| Tinnitus | Cranial Nerve VIII (auditory) |
| Vertigo | Cranial Nerve VIII (vestibular) |
| Complete Ptosis | Cranial Nerve III (oculomotor) |
| Swimmer's ear | Infection of skin covering outer ear canal |
| Tympanic Membrane | Eardrum |
