Cranial Nerves

Question 1

CN I

Answer 1

Olfactory

Olfactory Foramen in Cribiform plate

Sensory

Question 2

CN II

Answer 2

Optic

Optic Canal

Sensory

Question 3

CN III

Answer 3

Oculomotor

Superior Orbital Fissure

Motor

Question 4

CN IV

Answer 4

**Trochlear **

Superior Orbital Fissure

Motor

Question 5

CN V

Answer 5

Trigeminal

V1 Ophthalmic–Superior Orbital Fissure –> Supraorbital Foramen

V2 Maxillary–Foramen Rotundum –> Infraorbital Foramen

V3 Mandibular–Foramen Ovale → Mandibular Foramen → Mental Foramen

Both motor and sensory

Question 6

CN VI

Answer 6

Abducens

Superior Orbital Fissure

Question 7

CN VII

Answer 7

**Facial **

Internal Auditory Meatus → Stylomastoid Foramen

5 Branches: Temporal, Zygomatic, Buccal, Mandibular, Cervical

Both sensory and Motor

Question 8

CN VIII

Answer 8

Vestibulocochlear

Internal Auditory Meatus

Sensory

Question 9

CN IX

Answer 9

Glossopharyngeal

Jugular Foramen

Both Sensory and Motor

Question 10

CN X

Answer 10

**Vagus **

Jugular Foramen

Both senory and Motor

Question 11

CN XI

Answer 11

Spinal Accessory

Foramen Magnum → Jugular Foramen (Plate 127)

Motor

Question 12

CN XII

Answer 12

**Hypoglossal **

Hypoglossal Canal

Motor

Question 13

Function of the Cranial Nerves Mnemonic

Answer 13

Some Say Marry Money But My Brother Says Big Brains Matter More

I       II     III      IV     V    VI     VII      VIII     IX      X       XI   XII

Question 14

Mnemonic for remembering the names of the cranial nerves…

Answer 14

Oh, Once, One, Takes, The, Anatomy, Final, Very, Good, Vacations, Are, Had