Cranial Nerves

Mnemonic: "Ooh, Ooh, Ooh To Touch And Feel Very Good Velvet. Such Heaven!"

Sensory (S) or Motor (M) or Both (B)?

• Mnemonic: "Some Say Marry Money But My Brother Says Big Brains Matter More"

I: Olfactory​

• Sensory​

• Smell

II: Optic​​​

• Sensory​

• Vision

III: Ocularmotor

• Motor

• Eye movement upward, medial, downward, up and in

IV: Trochlear

• Motor

• Eye movement down and in

V: Trigeminal

• Both

• sensory information from upper part of face (forehead and scalp), middle part of face (cheeks, upper lip, and nasal cavity), and ears, lower lip, and chin

• Motor function of jaw (clench teeth)

VI: Abducens

• Motor

• Look side to side

VII: Facial

• Both

• Taste for anterior 2/3 of tongue

• Facial expressions

VIII: Acoustic (Vestibulocochlear)

• Sensory

• Hearing and equilibrium/balance

IX: Glossopharyngeal

• Both

• Sensory information from sinuses, parts of inner ear, and back 1/3 of tongue

• Motor function for some muscles of speech (in back of throat)

X: Vagus

• Both

• Sensory from ear canal and throat, organs in chest and trunk

• Motor control of muscles in throat

XI: Spinal Accessory

• Motor

• Muscles in neck (shoulder shrug)

XII: Hypoglossal

• Motor

• Tongue movement