Cranial Nerves Flashcards

1
Q

CN 1 (Exit Point)

A

Cribriform plate of ethmoid bone

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2
Q

CN 2 (Exit Point)

A

Optic Canal

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3
Q

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

A

Superior Orbital Fissure

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4
Q

CN 5V2 (Maxillary) (Exit Point)

A

Foramen Rotundum

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5
Q

CN 5V3 (Mandibular) (Exit Point)

A

Foramen Ovale

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6
Q

CN 7,8 (Exit Point)

A

Internal Acoustic Meatus

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7
Q

CN 9, 10, 11 (Exit Point)

A

Jugular Foramen

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8
Q

CN 12 (Exit Point)

A

Hypoglossal Canal

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9
Q

Sensory CN

A

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

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10
Q

Motor CN

A

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

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11
Q

Mixed CN

A

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

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12
Q

MC Contused CN in TBI

A

CN 1 (Olfactory)

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13
Q

Smallest CN

A

CN 4 (Trochlear)

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14
Q

Pupillary Light (Nucleus)

A

Pretectal

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15
Q

Accommodation (Nucleus)

A

Edinger-Westphal

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16
Q

Accommodation: if object is NEAR

A

Lens thicker
Converge
Pupil constriction

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17
Q

External Strabismus Triad

A

Divergent
Exotropia
Wall eye

d/t Medial Rectus

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18
Q

Marcus Gunn Pupil AKA

A

RAPD
Reactive Affective Pupillary Dilation

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19
Q

Marcus Gunn Pupil Triad

A

Miosis
Anhidrosis
Ptosis

20
Q

Argyll Robertson Pupil Manifestion

A

ARP = Accommodation Reflex Present

PRA = Pupillary Reflex Absent

21
Q

CN 5 - Ophthalmic Division (Sensory)

A

Forehead
Scalp
Eyeball
Cornea
Tip of the nose

22
Q

CN 5 - Maxillary Division (Sensory)

A

Upper Jaw & Teeth

23
Q

CN 5 Mandibular Division (Sensory)

A

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

24
Q

Largest CN

A

CN 5 (Trigeminal)

25
Q

Site of Injuries CN 7

A

Stylohyoid
Chorda Tympani
Stapedius
Geniculate Body
Pons
Internal Acoustic Meatus

26
Q

CN 7 (Motor except Facial mm)

A

Posterior Belly of Digastric
Auricular mm
Stapedius
Stylohyoid

27
Q

CN 7 (Glands)

A

Lacrimal
Nasal
Palatine
Sublingual
Submandibular

28
Q

CN 9 (Motor)

A

Stylopharyngeus (Swallowing)

29
Q

CN 9 (Sensory)

A

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

30
Q

CN 9 (Parasympathetic)

A

Parotid Gland

31
Q

CN 10 (Main Motor)

A

Pharynx mm
Larynx mm
Epiglottis
Palatoglossus

32
Q

CN 10 (Sensory)

A

Soft palate
Tonsils
Taste buds
Epiglottis
Eustachian Tube
Pharynx

33
Q

CN 10 (Parasympathetic)

A

Involuntary mm of BHESS

Bronchi
Heart
Esophagus
Stomach
Small & Large Intestine

34
Q

Horner’s Syndrome Manifestation

A

Miosis
Anhidrosis
Ptosis
Enopthalmos
Dilation of skin arterioles

35
Q

AICA (CN Affectation)

A

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

36
Q

Polio (CN Affectation)

A

9 (Glossopharyngeal)
10 (Vagus)

37
Q

MS (CN Affectation)

A

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

38
Q

Moebius (CN Affectation)

A

6 (Abducens)
7 (Facial)

39
Q

Sjorgen (CN Affectation)

A

7 (Facial)
9 (Glossopharyngeal)

40
Q

TBI (CN Affectation)

A

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

41
Q

Locked In (CN Affectation)

A

ALL

42
Q

Wallenberg (CN Affectation)

A

10 (Vagus)
5 (Trigeminal)

43
Q

DM (CN Affectation)

A

6 (Abducens)
3 (Oculomotor)

44
Q

PD (CN Affectation)

A

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

45
Q

Miller Fisher (CN Affectation)

A

3 (Oculomotor)
4 (Trochlear)

46
Q

Weber (CN Affectation)

A

3 (Oculomotor)
4 (Trochlear)

47
Q

Benedikt (CN Affectation)

A

3 (Oculomotor)