Cranial Nerves

Question 1

Olfactory (CN I)

Answer 1

Brain: Telencephalon
Exit: Cribriform Plate- Ethmoid Bone

SVA: smell

Question 2

Optic (CN II)

Answer 2

Brain: Diencephalon
Exit: Optic Canal

SSA: Vision

Question 3

Oculomotor (CN III)

Answer 3

Brain: Midbrain
Exit: Superior Orbital Fissure

GSE: Extraocular Muscles (ex. SO, LR)
GVE: Sphincter Pupillae, Ciliary Muscles

Question 4

Trochlear (CN IV)

Answer 4

Brain: Midbrain
Exit: Superior Orbital Fissure

GSE: Superior Oblique Muscle

Question 5

Trigeminal (CN V)

Answer 5

Brain: Pons
Exit: 1. Superior Orbital Fissure
2. Foramen Rotundum
3. Foramen Ovale

SVE: Muscles of Mastication
GSA: Skin

Question 6

Abducens (CN VI)

Answer 6

Brain: Pons
Exit: Superior Orbital Fissure

GSE: Lateral Rectus Muscle

Question 7

Facial Nerve (CN VII)

Answer 7

Brain: Pons
Exit: Internal Acoustic Meatus, Facial Canal, and Stylomastoid Foramen

SVE: Muscles of Facial Expression
GVE:
GSA:
SVA: Taste for Anterior 2/3 Tongue

Question 8

Vestibulochochlear (VIII)

Answer 8

Brain: Pons
Exit: Internal Acoustic Meatus

SSA: Hearing and Balance

Question 9

Glossopharyngeal (IX)

Answer 9

Brain: Medulla Oblongata
Exit: Jugular Foramen

SVE: 
GVE: 
GSA: Posterior 1/3 tongue (touch)
SVA: Taste Posterior 1/3 tongue
GVA: Carotid Body and Sinus

Question 10

Vagus (CN X)

Answer 10

Brain: Medulla Oblongata
Exit: Jugular Foramen

SVE: Muscles of the Larynx
GVE: smooth and cardiac muscle and glands of larynx, pharynx, thorax, and abdomen.
GSA: Posterior 1/3 tongue (touch)
GVA: Aortic Chemo and Baroreceptors
SVA: Taste from Epiglottis and Upper esophagus

Question 11

Spinal Accessory (CN XI)

Answer 11

Brain: Medulla Oblongata
Exit: Jugular Foramen

GSE: Trapezius, Sternocleidomastoid

Question 12

Hypoglossal (CN XII)

Answer 12

Brain: Medulla Oblongata
Exit: Hypoglossal Canal

GSE: Muscles of the Tongue (except palatoglossus)