Cranial Nerves

Question 1

CN 1 (Exit Point)

Answer 1

Cribriform plate of ethmoid bone

Question 2

CN 2 (Exit Point)

Answer 2

Optic Canal

Question 3

CN 3, 4, 5V1 (Ophthalmic), 6 (Exit Point)

Answer 3

Superior Orbital Fissure

Question 4

CN 5V2 (Maxillary) (Exit Point)

Answer 4

Foramen Rotundum

Question 5

CN 5V3 (Mandibular) (Exit Point)

Answer 5

Foramen Ovale

Question 6

CN 7,8 (Exit Point)

Answer 6

Internal Acoustic Meatus

Question 7

CN 9, 10, 11 (Exit Point)

Answer 7

Jugular Foramen

Question 8

CN 12 (Exit Point)

Answer 8

Hypoglossal Canal

Question 9

Sensory CN

Answer 9

1 (Olfactory)
2 (Optic)
8 (Vestibulocochlear)

Question 10

Motor CN

Answer 10

3 (Oculomotor)
4 (Trochlear)
6 Abducens
11 Accessory
12 Hypoglossal

Question 11

Mixed CN

Answer 11

5 (Trigeminal)
7 (Facial)
9 (Glossopharyngeal)
10 (Vagus)

Question 12

MC Contused CN in TBI

Answer 12

CN 1 (Olfactory)

Question 13

Smallest CN

Answer 13

CN 4 (Trochlear)

Question 14

Pupillary Light (Nucleus)

Answer 14

Pretectal

Question 15

Accommodation (Nucleus)

Answer 15

Edinger-Westphal

Question 16

Accommodation: if object is NEAR

Answer 16

Lens thicker
Converge
Pupil constriction

Question 17

External Strabismus Triad

Answer 17

Divergent
Exotropia
Wall eye

d/t Medial Rectus

Question 18

Marcus Gunn Pupil AKA

Answer 18

RAPD
Reactive Affective Pupillary Dilation

Question 19

Marcus Gunn Pupil Triad

Answer 19

Miosis
Anhidrosis
Ptosis

Question 20

Argyll Robertson Pupil Manifestion

Answer 20

ARP = Accommodation Reflex Present

PRA = Pupillary Reflex Absent

Question 21

CN 5 - Ophthalmic Division (Sensory)

Answer 21

Forehead
Scalp
Eyeball
Cornea
Tip of the nose

Question 22

CN 5 - Maxillary Division (Sensory)

Answer 22

Upper Jaw & Teeth

Question 23

CN 5 Mandibular Division (Sensory)

Answer 23

Teeth
TMJ
Tensor Tympani
Tensor Veli Palatini
Anterior 2/3 of tongue (Sensation)

Question 24

Largest CN

Answer 24

CN 5 (Trigeminal)

Question 25

Site of Injuries CN 7

Answer 25

Stylohyoid Chorda Tympani Stapedius Geniculate Body Pons Internal Acoustic Meatus

Question 26

CN 7 (Motor except Facial mm)

Answer 26

Posterior Belly of Digastric Auricular mm Stapedius Stylohyoid

Question 27

CN 7 (Glands)

Answer 27

Lacrimal Nasal Palatine Sublingual Submandibular

Question 28

CN 9 (Motor)

Answer 28

Stylopharyngeus (Swallowing)

Question 29

CN 9 (Sensory)

Answer 29

Mucus membrane of Pharynx Taste & Sensation of Post 1/3 of Tongue Carotid Sinus & Body

Question 30

CN 9 (Parasympathetic)

Answer 30

Parotid Gland

Question 31

CN 10 (Main Motor)

Answer 31

Pharynx mm Larynx mm Epiglottis Palatoglossus

Question 32

CN 10 (Sensory)

Answer 32

Soft palate Tonsils Taste buds Epiglottis Eustachian Tube Pharynx

Question 33

CN 10 (Parasympathetic)

Answer 33

Involuntary mm of BHESS Bronchi Heart Esophagus Stomach Small & Large Intestine

Question 34

Horner's Syndrome Manifestation

Answer 34

Miosis Anhidrosis Ptosis Enopthalmos Dilation of skin arterioles

Question 35

AICA (CN Affectation)

Answer 35

5 (Trigeminal) 6 (Abducens) 7 (Facial)

Question 36

Polio (CN Affectation)

Answer 36

9 (Glossopharyngeal) 10 (Vagus)

Question 37

MS (CN Affectation)

Answer 37

2 (Optic) **MC** 5 (Trigeminal) 7 (Facial) 8 (Vestibulocochlear)

Question 38

Moebius (CN Affectation)

Answer 38

6 (Abducens) 7 (Facial)

Question 39

Sjorgen (CN Affectation)

Answer 39

7 (Facial) 9 (Glossopharyngeal)

Question 40

TBI (CN Affectation)

Answer 40

7 (Facial) 3 (Oculomotor) 1 (Olfactory)

Question 41

Locked In (CN Affectation)

Answer 41

ALL

Question 42

Wallenberg (CN Affectation)

Answer 42

10 (Vagus) 5 (Trigeminal)

Question 43

DM (CN Affectation)

Answer 43

6 (Abducens) 3 (Oculomotor)

Question 44

PD (CN Affectation)

Answer 44

6 (Abducens) 7 (Facial) 9 (Glossopharyngeal)

Question 45

Miller Fisher (CN Affectation)

Answer 45

3 (Oculomotor) 4 (Trochlear)

Question 46

Weber (CN Affectation)

Answer 46

3 (Oculomotor) 4 (Trochlear)

Question 47

Benedikt (CN Affectation)

Answer 47

3 (Oculomotor)