Unit IV (Cranial Nerves)

Question 1

Cranial Nerve 1

Answer 1

Olfactory

Question 2

Cranial Nerve 2

Answer 2

Optic

Question 3

Cranial Nerve 3

Answer 3

Oculomotor

Question 4

Cranial Nerve 4

Answer 4

Trochlear

Question 5

Cranial Nerve 5

Answer 5

Trigeminal

Question 6

Cranial Nerve 6

Answer 6

Abducens

Question 7

Cranial Nerve 7

Answer 7

Facial

Question 8

Cranial Nerve 8

Answer 8

Auditory

Question 9

Cranial Nerve 9

Answer 9

Glossopharyngeal

Question 10

Cranial Nerve 10

Answer 10

Vagus

Question 11

Cranial Nerve 11

Answer 11

Accessory

Question 12

Cranial Nerve 12

Answer 12

Hypoglossal

Question 13

Which Cranial Nerve functions to provide the sense of smell?

Answer 13

Cranial Nerve 1 (Olfactory)

Question 14

Which Cranial Nerve provides the sensation of touch, temperature, and pain from the head/neck, corneal sensation, and controls mastication?

Answer 14

Cranial Nerve 5 (Trigeminal)

Question 15

Which Cranial Nerve controls eye movements, contracts eyes, and changes diameter of the pupil?

Answer 15

Cranial Nerve 3 (Oculomotor)

Question 16

Which Cranial Nerve allows for tongue movement?

Answer 16

Cranial Nerve 12 (Hypoglossal)

Question 17

Which Cranial Nerve provides for vocal chord movement and sensation to the pharnyx and larynx?

Answer 17

Cranial Nerve 10 (Vagus)

Question 18

Which Cranial Nerve deals with hearing and balance?

Answer 18

Cranial Nerve 8 (Auditory)

Question 19

Which Cranial Nerve allows lateral eye movements?

Answer 19

Cranial Nerve 6 (Abducens)

Question 20

Which Cranial Nerve promotes head and shoulder rotation?

Answer 20

Cranial Nerve 11 (Accessory)

Question 21

Which Cranial Nerve provides visual acuity and visual fields?

Answer 21

Cranial Nerve 2 (Optic)

Question 22

Which Cranial Nerve provides ocular movements?

Answer 22

Cranial Nerve 4 (Trochlear)

Question 23

Which Cranial Nerve provides facial expressions and sense of taste?

Answer 23

Cranial Nerve 7 (Facial)

Question 24

Which Cranial Nerve allows taste on posterior 1/3 of tongue, swallowing ability, and tongue movements.

Answer 24

Cranial Nerve 9 (Glossopharyngeal)

Question 25

How is Cranial Nerve 1 (Olfactory) assessed?

Answer 25

Eyes are closed, and patient asked to identify smells (coffee, vanilla, cinnamon).

Question 26

How is Cranial Nerve 4 (Trochlear) assessed?

Answer 26

Asking the patient to follow the six EOM (Extra Ocular Movements)

Question 27

How is Cranial Nerve 8 (Auditory) assessed?

Answer 27

Ability to hear spoken word.
Use of tuning fork.
Heel-Toe walking in straight line.

Question 28

How is Cranial Nerve 9 (Glossopharyngeal) assessed?

Answer 28

Swallowing water.
Applying tastes (Sweet, Salty, Bitter, Sour) to posterior tongue.

Question 29

How is Cranial Nerve 12 (Hypoglossal) assessed?

Answer 29

Ask pt to stick out tongue (should be midline).

Ask pt to move tongue side-side and up-down.

Question 30

How is Cranial Nerve 6 (Abducens) assessed?

Answer 30

Six EOM (Extra Ocular Movements)

Question 31

How is Cranial Nerve 5 (Trigeminal) assessed?

Answer 31

Pt closes eyes, identifies touch.
Eye drop to test for blink reflex.
Ask pt to clench teeth.

Question 32

How is Cranial Nerve 7 (Facial) assessed?

Answer 32

Ask pt to: smile, frown, show teeth, close both eyes, puff cheeks, whistle, raise eyebrows.
Test for taste on anterior 2/3 of tongue.

Question 33

How is Cranial Nerve 11 (Accessory) assessed?

Answer 33

Apply resistance and ask pt to raise shoulders/turn head. Observe for symmetry of movement.

Question 34

How is Cranial Nerve 2 (Optic) assessed?

Answer 34

Ask pt to read a magazine, identify letters on snellen chart, test peripheral vision.

Question 35

How is Cranial Nerve 3 (Oculomotor) assessed?

Answer 35

Penlight to pupil for reaction.
6 EOM (Extra Ocular Movements)

Question 36

How is Cranial Nerve 10 (Vagus) assessed?

Answer 36

Ask pt to pronounce sounds such as K, Q, Ch, B, and D

Question 37

On old Olympus treeless top,a Finn and German view a hop.

Answer 37

Olfactory 1
Optic 2
Ocular motor 3
Tochlear  4
Trigeminal 5
Abducens 6
Facial  7
Auditory 8
Glossopharyngeal 9
Vagus 10
Accessory 11
Hypoglossal 12