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SAM Final > 38. Diseases of the cranial nerves in dogs and cats > Flashcards

38. Diseases of the cranial nerves in dogs and cats Flashcards

1
Q

Cranial Nerve I Name

A

Olfactory nerve

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2
Q

Cranial Nerve II Name

A

Optic

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3
Q

Cranial Nerve III Name

A

Oculomotor

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4
Q

Cranial Nerve IV Name

A

Trochlear

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5
Q

Cranial Nerve V Name

A

Trigeminal

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6
Q

Cranial Nerve VI Name

A

Abducent

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7
Q

Cranial Nerve VII Name

A

Facial

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8
Q

Cranial Nerve VIII Name

A

Vestibulocochlear

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9
Q

Cranial Nerve IX Name

A

Glossopharyngeal

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10
Q

Cranial Nerve X Name

A

Vagus

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11
Q

Cranial Nerve XI Name

A

Accessory

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12
Q

Cranial Nerve XII Name

A

Hypoglossal

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13
Q

Sensory Nerves

A

Olfactory
Trigeminal
Facial
Vestibulocochlear
Glossopharyngeal
Vagus

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14
Q

Motor Nerves

A

Optic
Oculomotor
Trochlear
Trigeminal
Abducent
Facial
GLossopharyngeal
Vagus
Accessory
Hypoglossal

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15
Q

Parasympathetic nerves

A

Optic
Facial
Glossopharyngeal
Vagus

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16
Q

Examination of CNI

A

evaluate the smell function and behavioral reaction

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17
Q

Loss of sense of smell

A

anosmia
Bilateral brain lesions

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18
Q

Is the examination of smell accurate

A

No
Irritating substances may excite CNV sensory nerves endings and will not correlate with olfaction

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19
Q

Examination of CN II

A

Vision
PLR (also CN III)
Menace Response (also CN VII) (learned response)
Visual placing (also motoric innervation of forelimbs)

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20
Q

Examination of CN III

A

physiological nystagmus —- turn head from side to side and eye will follow heads position

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21
Q

Dysfunction of CN III

A

Ventrolateral strabismus

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22
Q

Examination of CN IV

A

Physiological nystagmus

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23
Q

Dysfunction of CN IV

A

Dorsolateral strabismus

24
Q

3 Branches of CN V

A

Opthalmic
Maxillary
Mandibular

25
Q

Examination of sensory function of CN V

A

Corneal reflex
Palpebral reflex
Sensation of facial area

26
Q

Examination of motor function of CN V

A

size and symmetry of mastifactory muscles
resistance of jaw to opening the mouth

27
Q

Dysfunction of CN V

A

Loss of sensory function of certain facial areas
Bilateral mandibular branch lesions –> dropped jaw , unable to close mouth
Chronic denervation –> muscle atrophy

28
Q

Differential diagnosis of dysfunction of CN V

A

Myositosis

29
Q

Examination of CN VI

A

Physiological nystagmus

30
Q

Dysfunction of CN VI

A

medial strabismus

31
Q

Motor function of CN VII

A

muscles of facial expression

32
Q

Sensory function of CN VII

A

Sense of taste

33
Q

Autonomic function of CN VII

A

Lacrimal glands
Mandibular glands
Sublingual salivary glands

34
Q

Examination of CN VII

A

symmetry of face
corneal reflec
schirmer tear test
menace response
Blinking
Palpebral reflex
Pinching face

35
Q

What can cause facial nerve paralysis

A

inflammation and surgery of the ear

36
Q

Function of CNVIII

A

hearing
vestibular function (adaptation of eye and body position with respect to position and movement of the head)

37
Q

What is vestibular system

A

coordinates the position of the eye, neck, trunk and limbs with movements of the head
maintains equilibrium during active and passive movement when head is at rest

38
Q

Clinical signs of vestibular disease

A

Vestibular strabismus
imbalance
nystagmus
head tilt
vestibular ataxia
normal postural reactions

39
Q

Forms of Vestibular disease

A

Peripheral – inner eat
Central — cerebellum

40
Q

Motor function of CN IX

A

muscles of pharynx and palate

41
Q

Sensory function of CN IX

A

tongue & pharyngeal mucosa – taste

42
Q

Autonomic function of CN IX

A

salivary glands

43
Q

Examination of CN IX

A

Swallowing
gag reflex

44
Q

Dysfunction of CN IX

A

Dysphagia

45
Q

Motor function of CN X

A

Pharynx, larynx, oesophagus

46
Q

Sensory function of CN X

A

Pharynx, larynx, thoracic, abdominal viscera

47
Q

Autonomic function of CN X

A

Thoracic and abdominal viscera

48
Q

Examination of CN X

A

Swallowing
gag reflex

49
Q

Dysfunction of CN X

A

Dysphagia
Laryngeal paralysis
voice changes
megaoesophagus

50
Q

Internal branch of CN XI

A

muscles of larynx, cranial oesophagus

51
Q

External branch of CN XI

A

Mm trapezius, sternocephalicus, brachiocephalicus

52
Q

Dysfunction of CN XI

A

Laryngeal paralysis

53
Q

Function of CN XII

A

Motoric innervation of the tongue

54
Q

Examination of CN XII

A

Pasty food under the nose - can animal lick it off
palpation — any atrophy felt
Pull the tongue — can animal withdraw it

55
Q

Dysfunction of CN XII

A

Unilateral atrophy of tongue
Unilateral lingual deviation

56
Q

Pathological lesions of cranial nerves

A

Horner’s Syndrome

57
Q

Symptoms of horner’s syndrome

A

miotic pupil
prolapsed 3rd eyelid
ptosis
Enophthalmos
Decreased sweating

SAM Final (48 decks)

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