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Anatomy II > Final Neuro > Flashcards

Final Neuro Flashcards

1
Q

CN I passes through the:

A

cribiform plate

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2
Q

CN II passes through the:

A

optic canal

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3
Q

CN III passes through the:

A

orbital fissure

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4
Q

CN IV passes throught the:

A

orbital fissure

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5
Q

What do the three branches of CN V pass through?

A

Opthalmic: orbital fissure

Maxillary:round foramen–>alar canal–>rostral alar foramen

Mandibular: Oval foramen

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6
Q

CN VI passes through the:

A

orbital fissure

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7
Q

CN VII passes through the:

A

internal acoustic meatus–>facial canal–>stylomastoid foramen

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8
Q

CN VIII passes through the:

A

internal acoustic meatus

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9
Q

CN IX passes through the:

A

jugular foramen–>tympano occipital fissure

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10
Q

CN X passes through the:

A

jugular foramen–>tympano occipital fissure

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11
Q

CN XI passes through the:

A

jugular foramen–>tympano occipital fissure

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12
Q

CN XII passes through the:

A

hypoglossal foramen

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13
Q

CN I is _______(S/M?) for ___________

A

Sensory from smell

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14
Q

CN II is __________(S/M?) for _____________

A

Sensory from sight

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15
Q

CN III is ______________(S/M?) for _______________

A

motor to the dorsal, ventral, and medial rectus mm., ventral oblique m., levator palpebrae superioris m., and intrinsic eye mm.

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16
Q

CN IV is ___________(S/M?) for ____________

A

Motor to dorsal oblique m.

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17
Q

The ophthalmic branch of CN V is __________ (S/M) for ____________

A

Sensory from cornea, superior eyelid, medial canthus

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18
Q

The maxillary branch of CN V is _________(S/M) for ______________

A

Sensory from lateral canthus, superior lip/mouth

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19
Q

The mandibular branch of CN V is ___________(S/M) for _______________

A

Sensory from lower face AND motor to mm. of mastication

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20
Q

CN VI is _________(S/M) for ____________

A

Motor to retractor bulbi m. and lateral rectus m.

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21
Q

CN VII is ____________(S/M) for _____________

A

Sensory from ear and taste to rostral tongue AND motor to mm. of facial expression and ear

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22
Q

CN VIII is ___________(S/M) for _________________

A

Sensory from hearing and equilibrium

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23
Q

CN IX is ______________(SM) for _______________

A

Sensory from caudal tongue/taste AND motor to pharynx and esophagus

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24
Q

CN X is _______________(SM) for _______________

A

Sensory from larynx, epiglottis (taste), viscera AND motor to pharynx (swallowing)

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25
Q

CN XI is ________________(SM) for _______________

A

Motor to mm. of the neck, laryngeal mm. (cricoarytenoideus dorsalis m.–open glottis)

26
Q

CN XII is ___________(SM) for ________________

A

Motor to the tongue

27
Q

The suprascapular n. innervates which mm.?

A

Supraspinatus m. and infraspinatus m.

28
Q

The subscapular n. innvervates which mm?

A

Subscapularis m.

29
Q

The musculocutaneous n. innervates which mm.?

A

Biceps brachii m, brachialis m., coracobrachialis m. (BBC)

30
Q

The axillary n. innervates which mm.?

A

Deltoideus m., teres major m. teres minor m.

31
Q

The radial n. innervates which mm.?

A

Triceps brachii m., extensor carpi radialis m., ulnaris lateralis m., common digital extensor m., lateral digital extensor m. (triceps +ECLU)

32
Q

The median n. innervates which mm.?

A

Flexor carpi radialis m., SDF m.

33
Q

The ulnar n. innervates which mm.?

A

Flexor carpi ulnaris m., DDF m.

34
Q

The brachial plexus spans which vertebrae?

A

C6-T2

35
Q

What does the lateral thoracic n. innervate?

A

Cutaneous trunci m. (panniculus reflex!) C8-T1

36
Q

The thoracodorsal n. innervates which mm.?

A

Latissismus dorsi m.

37
Q

The lumbosacral plexus spans which vertebrae?

A

L4-S3

38
Q

The femoral n. innervates which mm.?

A

Iliopsoas m., quadriceps, sartorius m.

39
Q

The obturator n. innervates which mm.?

A

External obturator m., pectineus m., gracilis m., adductor m.

40
Q

The cranial gluteal n. innervates what mm.?

A

Middle gluteal m., deep gluteal m., tensor fasciae latae m.

41
Q

The caudal gluteal n. innervates which mm.?

A

Superficial gluteal m.

42
Q

The sciatic n. innervates which mm.?

A

Biceps femoris m., semimembranosus m., semitendinosus m.

43
Q

The common fibular n. innervates which mm.?

A

Fibularis longus m., lateral digital extensor m., long digital extensor m., cranial tibial m.

44
Q

The tibial n. innervates which mm.?

A

Gastrocnemius m., popliteus m., SDF, DDF

45
Q

“Sweeney shoulder” in the horse is a result of damage to which nerve?

A

suprascapular n. (no acromion in equine so susceptible to damage)

46
Q

Damage to which n. of the brachial plexus would prevent weight bearing on the TL?

A

radial n. (“key” nerve of thoracic limb!)

47
Q

Which brachial plexus nn. share a common trunk in the dog?

A

Median and ulnar nn.

48
Q

Which brachial plexus nn. share a common trunk in the horse?

A

Median and musculocutaneous nn.

49
Q

Damage to which n. of the lumbrosacral plexus would prevent weight bearing on the PL?

A

Femoral n. (“key” n. of the PL, innervates mm. which fix the stifle, if stifle cannot be fixed, then no weight can be born)

50
Q

A patient presents with lateral strabismus. What CN do you suspect is affected?

A

CN III Oculomotor

51
Q

Which CNs contribute to normal eye movement?

A

CN II (Optic), III (Oculomotor), IV (Trochlear), VI (Abducens)

52
Q

Which CNs are involved in producing a normal Pupillary Light Reflex?

A

CN II (Optic) IN afferent/ CN III (Oculomotor) OUT efferent

53
Q

Which CNs are involved in producing a normal Menace Response?

A

CN II (Optic) IN afferent/ CN VII (Facial) OUT efferent

54
Q

A cat presents with lateral rotation of the dorsal aspect of the pupil. What CN is likely lesioned?

A

CN IV Trochlear

55
Q

Which CN’s autonomous zone includes the medial canthus?

A

Ophthalmic branch of CN V Trigeminal

56
Q

Which CN’s autonomous zone includes the lateral canthus?

A

Maxillary br. of CN V Trigeminal

57
Q

T/F a lesion of the mandibular br. of CN V would result in an inability to open the mouth

A

FALSE digastricus m. has duel innervation (mandibular br. of CN V and CN VII) so this m. would still be functional with a Trigeminal lesion

58
Q

The corneal reflex involves which CNs?

A

CN V opthalmic br. IN afferent/CN VI OUT efferent

59
Q

A patient presents with medial stabismus (derp) What CN do you suspect is lesioned?

A

CN VI Abducens

60
Q

A patient presents with decreased palpebral reflex, absent menace response, and an inability to wrinkle either the upper or lower lip. Which CN do you suspect is affected?

A

CN VII Facial (involved in all 3 responses)

61
Q

Which afferent CNs would you be testing by sticking your fingers down a patient’s throat to see if it had a normal gaga reflex?

A

CN IX Glossopharyngeal and CN X Vagus

62
Q

An equine patient presents with “Roarer’s”. What CN do you suspect is affected?

A

CN XI Accessory

Anatomy II (1 decks)

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