Cranial Nerves

Question 1

Cranial Nerve I

Answer 1

Olfactory- Smell test

Sense of smell

Question 2

Cranial Nerve II

Answer 2

Optic- Visual Acuity & Visual Fields

Provides vision

Question 3

Cranial Nerve III

Answer 3

Oculomotor- Pupil constriction & extraocular movements

Opening and moving eyes; adjusting pupil width

Question 4

Cranial Nerve IV (4)

Answer 4

Trochlear- Extraoclear movements: inferior adduction

Looking down, moving eyes toward or away from nose

Question 5

Cranial Nerve V (5)

Answer 5

Trigeminal= clench teeth; close eyes- light touch to the face

Providing sensations in eyes, most of face, inside mouth. Chewing.

Question 6

Cranial Nerve VI (6)

Answer 6

Abducens= extraocular movements- lateral abduction

Moving eyes from left to right

Question 7

Cranial Nerve VII (7)

Answer 7

Facial= facial movement- close eyes, smile

Controls several facial muscles to make facial expressions; provides sense of taste in part of the tongue

Question 8

Cranial Nerve VIII (8)

Answer 8

Acoustic= hearing & balance

Provides sense of hearing and balance

Question 9

Cranial Nerve IX (9)

Answer 9

Glossopharyngeal= gag reflex

Taste sensations for part of the tongue; controls muscles for swallowing; parasympathetic nerve fibers that play a role in BP regulation and saliva production

Question 10

Cranial Nerve X (10)

Answer 10

Vagus= uvular and palatal movement- say “ahhhh”

Regulates several automatic bodily processes including digestion, BP, HR, breathing, mood, saliva production, etc… main nerve of the parasympathetic NS

Question 11

Cranial Nerve XI (11)

Answer 11

Spinal Accessory= turn head & lift shoulders

Controls shoulder & neck movement

Question 12

Cranial Nerve XII (12)

Answer 12

Hypoglossal= stick out tongue

Controls tongue movement, playing a role in speaking, eating, swallowing

Question 13

CN Mnemonic: nerve order

Answer 13

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

Olfactory (I)
Optic (II)
Oculomotor (III)
Trochlear (IV)
Trigeminal (V)
Abducens (VI)
Facial (VII)
Vestibulocochlear (VIII)
Glossopharyngeal (IX)
Vagus (X)
Spinal Accessory (XI)
Hypoglossal (XII)

Question 14

CN mnemonic: nerve function

Answer 14

Some Say Marry Money, But My Brother Says Big Brains Matter Most

I- Some= Sensory
II- Say= Sensory
III- Marry= Motor
IV- Money= Motor
V- But= Both
VI- My= Motor
VII- Brother= Both
VIII- Says= Sensory
IX- Big= Both
X- Brains= Both
XI- Matter= Motor
XII- More= Motor