Cranial Nerves

Majority of the cranial nerves are found in which part of the brain?

Brainstem

CN mnemonics

Oh

Oh

Oh

To

Touch

And

Feel

Virgin

Girls

V**ina

Ahhh

Heaven

CN I (1)

Olfactory

Olfactory does what?

Smell

CN II (2)

Optic

what does Optic do?

Vision

CN III (3)

Oculomotor

what does Oculomotor do?

Eye movement , dilate pupil

CN IV (4)

Trochlear

what does trochlear do?

superior oblique muscle, eye down and inward

CN V (5)

Trigeminal

what does Trigeminal do?

Facial sensation, Mastication

CN VI (6)

Abducens

what does Abducens do?

eye abduction

CN VII (7)

Facial

what does facial do?

facial expression, taste

what is CN VII connected to

Bell’s palsy

CN VIII (8)

Vestibulocochlear

what does Vestibulocochlear do ?

Hearing , Balance

CN IX (9)

glossopharyngeal

what does Glossopharyngeal do?

taste posterior tongue, swallowing

CN X (10)

Vagus

what does Vagus do?

Voice , parasympathetic control

CN XI (11)

Accessory

what does accessory do?

SCM, trapezius

CN XII

Hypoglossal

what does Hypoglossal do?

tongue movement

Motor CN

III- Oculomotor

IV- Trochlear

VI- Abducens

XI- Accessory

XII- Hypoglossal

Special sensory CN

I- Olfactory

II- optic

VIII- Vestibulocochlear

Mixed CN

V- Trigeminal

VII- Facial

IX- Glossopharyngeal

X- Vagus