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Veterinary Medicine > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

What is Cranial Nerve I Called?

A

Olfactory

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2
Q

What is Cranial Nerve II Called?

A

Optic

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3
Q

What is Cranial Nerve III Called?

A

Oculomotor

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4
Q

What is Cranial Nerve IV Called?

A

Trochlear

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5
Q

What is Cranial Nerve V Called?

A

Trigeminal

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6
Q

What is Cranial Nerve VI Called?

A

Abducens

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7
Q

What is Cranial Nerve VII Called?

A

Facial

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8
Q

What is Cranial Nerve VIII Called?

A

Vestibulocochlear

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9
Q

What is Cranial Nerve IX Called?

A

Glossopharyngeal

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10
Q

What is Cranial Nerve X Called?

A

Vagus

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11
Q

What is Cranial Nerve XI Called?

A

Accessory

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12
Q

What is Cranial Nerve XII Called?

A

Hypoglossal

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13
Q

What is the function of the olfactory nerve?

A

Conscious perception of smell

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14
Q

What is the function of CN II?

A

Vision

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15
Q

What structures does CN III innervate?

A

Dorsal/Ventral/Medial Recti Muscles
Ventral Oblique Muscle
Levator Palpebrae Superioris
Papillary Constriction

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16
Q

What does the trochlear never innervate?

A

Dorsal Oblique Muscle

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17
Q

Which of the following innervates the ipsilateral eye muscles:
CN III or CN IV?

A

CN III (oculomotor)

CN IV= contralateral

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18
Q

Which CN has the following 3 branches:

Ophthalmic, Maxillary and Mandibular?

A

Trigeminal (V)

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19
Q

What does the trigeminal nerve innervate for sensory perception?

A

Face

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20
Q

What does the trigeminal nerve innervate for motor function?

A

Mucous membranes

21
Q

What does the abducens innervate?

A

IPSILATERAL lateral rectus

Retractor bulbi

22
Q

What does the facial nerve innervate for motor function?

A

Muscles of Facial Expression

23
Q

What parasympathetic innervation does CN VII contain?

A

lacrimal, mandibular & sublingual glands

24
Q

What does the facial nerve innervate for sensory perception?

A

ROSTRAL 2/3 of tongue

25
Q

What is the function of CNVIII?

A

Hearing and Vestibular Function

26
Q

What parasympathetic innervation does CN IX contain?

A

parodic and zygomatic glands

27
Q

What does the glossopharyngeal nerve innervate for sensory perception?

A

Caudal 1/3 tongue

Pharynx

28
Q

What does CN IX innervate for motor function?

A

Pharynx

Palate

29
Q

What does the motor portion of CN X innervate?

A

Larynx, pharynx, oesophagus

30
Q

What does the sensory portion of CN X innervate?

A

larynx/pharynx
Thoracic viscera
Abdominal viscera

31
Q

What does the parasympathetic portion of CN X innervate?

A

All thoracic and abdominal viscera (except pelvic region)

32
Q

What does the accessory nerve innervate?

A

Trapezius
Partial Sternocephalicus
Partial Brachiocephalicus

33
Q

What does the hypoglossal nerve innervate?

A

Tongue - motor

34
Q

Where do the axons of CN I run?

A

Pass cribriform plate

Synapse: olfactory bulb

35
Q

Where do the axons of CN II run?

A

Caudally: enter skull via optic canal

Join at: optic chiasm

36
Q

Where do the axons of CN III run?

A

Exit via orbital fissure

37
Q

Where is the nucleus of CN III?

A

Midbrain

38
Q

Where do the axons of CN IV run?

A

Exit via orbital fissure

39
Q

Where is the nucleus of CN IV?

A

Caudal Midbrain

40
Q

Where are the nuclei of CN V?

A

Motor: pons
Sensory: through brainstem

41
Q

Where do the axons of CN VI run?

A

Exit via orbital fissure

42
Q

Where is the nucleus of CN VI?

A

Rostral Medulla

43
Q

Where are the nuclei of CN VIII?

A

Vestibular: Medulla
Cochlear: Medulla

44
Q

Where is the nucleus of CN IX?

A

shares nuclei with X in caudal medulla

45
Q

Where is the nucleus of CN X?

A

shares nuclei with IX in caudal medulla

46
Q

Where is the nucleus of CN XI?

A

Caudal medulla

47
Q

Where is the nucleus of CN XII?

A

Caudal Medulla

48
Q

Where do the axons of CN XII exit?

A

Via Hypoglossal Foramen

Veterinary Medicine (68 decks)

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