CNs

Question 1

CN I

Answer 1

Olfactory, smell

Question 1

CN II

Answer 1

Optic, vision

Question 1

CN III

Answer 1

Oculomotor, eyelid and eyeball movement

Question 1

CN IV

Answer 1

Trochlear, innervates superior obliques and turns eye down and lateral

Question 1

CN V

Answer 1

Trigeminal, nuclei in pons, Motor and sensory, three branches (opthalmic (s), maxillary (s), mandibular (m)), muscles of mastication, tensor veli palatini, etc, touch and pressure (face and scalp, anterior two thirds of tongue and teeth)

Question 1

CN VI

Answer 1

Abducens, eyeball mocement

Question 1

CN VII

Answer 1

Facial, mixed, nuclei in pons, eye blink and stapedius reflex, facial expression, speech (lips), taste from anterior two thirds of tongue

Question 1

CN VIII

Answer 1

Vestibulocochlear, sensory, nuclei in medulla, hearing, balance

Question 1

CN IX

Answer 1

Glossopharyngeal, mixed, nuclei in medulla, nucleus ambiguus (innervated bilateraly by corticobulbar tract), nucleus solitarious (taste for posterior one third of tongue), sensory component of gag reflex

Question 1

CN X

Answer 1

Vagus, Mixed, nuclei in medulla, nucleus ambiguus (pharyngeal, superior and rucurrent laryngeal branch), dorsal nucleus, nucleus solitarius

Question 1

CN XI

Answer 1

Spinal accessory, motor muscles of neck, shoulders and velum

Question 1

CN XII

Answer 1

Hypoglossal, innervates the intrinsic muscles of the tongue, reflexive actions (swallowing, sucking, chewing)

Question 1

CN Mnemonic Order

Answer 1

On Old Olympus’s Towering Top A Finn And A German Vended At Hops

Question 1

CN Mnemonic Sensory/Motor Function

Answer 1

Some Say Marry Money But My Brother Says Bad Business Marry Money

Question 1

CN with unilateral innervation

Answer 1

CN VII to contralateral lower face, CN XI to contralateral trapezius, CN XII to contralateral tongue side