Cranial Nerves (copy)

Names of Cranial Nerves

CN I: Olfactory - Sensory

CN II: Optic - Sensory

CN III: Oculomotor - Motor

CN IV: Trochlear - Motor

CN V: Trigeminal - Both

CN VI: Abducens - Motor

CN VII: Facial - Both

CN VIII: Vestibulocochlear - Sensory

CN IX: Glossopharyngeal - Both

CN X: Vagus - Both

CN XI: Accessory - Motor

CN XII: Hypoglossal - Motor

Cranial Nerve I: Olfactory

Sensory - Sense of smell

Cranial Nerve II: Optic

Sensory - Sight

Cranial Nerve III: Oculomotor

Motor (mostly) - Moves eyeball and upper eyelid and pupil constriction

Cranial Nerve IV: Trochlear

Motor (mostly) - Moves eyeball

Only cranial nerve arising from posterior brain stem and crossing midline after leaving brain stem

Cranial Nerve V: Trigeminal

Both - facial muscles, chew, form facial expressions

Largest cranial nerve

Sensory info: touch, pain, temp from face

Motor information for chewing muscles

Cranial Nerve VI: Abducens

Motor (mostly) - Movement of the eyeball

Cranial Nerve VII: Facial

Both - Moves face, tastes, salivates, Sensory information from taste buds on anterior 2/3 of tongue

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Motor information for facial expression and closing the eye

Autonomic information for crying and salivation

Cranial Nerve VIII: Vestibulocochlear

Sensory - Hears & regulates balance

Cranial Nerve IX: Glossopharyngeal

Both - Tastes, salivates, swallows

Cranial Nerve X: Vagus

Both - taste and sensation from epiglottis and pharynx. swallowing and speech

The wandering nerve

Cranial Nerve XI: Accessory

Motor - Turns head, lifts shoulders

Begins in BOTH brain stem and spinal cord

Cranial root motor info for swallowing

Spinal root motor info for head movements

Spinal root sensory info from neck proprioceptors

Cranial Nerve XII: Hypoglossal

Motor - Moves tongue

Sensory info from tongue proprioceptors

Motor info to tongue for speech, swallowing & protrusion of the tongue

Mnemonic for Function of Cranial Nerves

Some Say Money Matters, But My Brother Says, Big Brains Matter More

Mnemonic for Cranial Nerves

Oh Oh Oh To Touch, And Feel Very Good Velvet Such Heaven