Cranial Nerves

Question 1

Name all Nerves

Answer 1

Olfactory, Optic, Oculomotor, Trochlear, Abducens, Trigeminal, Facial, Vestibulocochlear,Glossopharyngeal, Vague, Accessory, Hypoglossal

Question 2

Which nerves are pure sensory?

Answer 2

I - Olfactory
II - Optic
V III -Vestibulochoclear

Question 3

Which nerves are pure motor?

Answer 3

III - Oculomotor
IV - Trochlear
VI- Abducens

Question 4

Which nerves carry parasympathetic fibers of ANS?

Answer 4

III - Oculomotor
VII - Facial
IX - Glossopharygeal
X - Vagus

Question 5

Define Anosmia

Answer 5

Inability do detect smells

Question 6

where would you have a lesion for anosmia?

Answer 6

Frontal Lesion

Question 7

Which CN tests visual acuity?

Answer 7

II - Optic

Question 8

Define Myopia

Answer 8

Impaired Far vision

Question 9

Define presbyopia

Answer 9

Impaired near vision

Question 10

Which CN tests pupillary reflexes?

Answer 10

II - Optic

III - Oculomotor

Question 11

Define: Anisocoria

Answer 11

Unequal pupils

Question 12

Which nerve dysfunction causes Horner’s Syndrome?

Answer 12

II or III

Question 13

What nerve dysfunction causes homonymous hemianopsia?

Answer 13

II - Optic

Question 14

Define Strabisumus

Answer 14

Eye deviates from normal conjugate position because it is pulled outwards (can’t look up, down or in)

Question 15

Which nerve controls strabismus?

Answer 15

CN VI - Trochlear

Question 16

Define Esotropia

Answer 16

Eye pulled inward

Question 17

Which nerve controls facial sensation?

Answer 17

CN V - Trigeminal

Question 18

Which nerve are you testing with Corneal Reflex?

Answer 18

V - Trigeminal

Question 19

What CN controls muscles of mastication?

Answer 19

V - Trigeminal

Question 20

What nerve controls motor of facial muscles?

Answer 20

VII - Facial

Question 21

Which CN effects nystagmus?

Answer 21

VIII - Vestibulocochlear

Question 22

What is Weber’s Test? what does it test?

Answer 22

Place vibrating tuning fork on head in mid position and see if heard equally. This is called LATERALIZATION.

Question 23

Rinne Test - What is this testing (CN?)

Answer 23

Compare air and bone conduction by placing tuning fork on mastoid bone then close to ear. Shoudl be heard longer through air than bone.. (VIII)

Question 24

Conductive Loss vs Sensorineural loss

Answer 24

Conductive - sound heard through bone is equal to or longer than air
Sensorineural loss - sound heard longer through air

Question 25

Dysphonia Horseness indicates

Answer 25

Vocal Cord paralysis

Question 26

Nasal quality Dysphonia indicates

Answer 26

Palatal weakness

Question 27

Define: Dysphagia

Answer 27

Difficulty swallowing

Question 28

Gag reflex is which nerve?

Answer 28

Glossalpharngeal

Question 29

Inability to keep uvula in midline is which CN?

Answer 29

Glossopharyngeal

Question 30

Which CN controls the Trap and SCM?

Answer 30

Accessory

Question 31

Which CN causes Dysarthria?

Answer 31

Vagus and Hypoglossal

Question 32

Which CN effects tongue movements?

Answer 32

Hypoglossal