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Neuro Anatomy > Week 2 - Cranial Nerves > Flashcards

Week 2 - Cranial Nerves Flashcards

1
Q

Where does CN I open into base of skull?

A

Cribriform plate in ethmoid bone

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2
Q

Where does CN II open into base of skull?

A

Optic canal

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3
Q

Where does CN III open into base of skull?

A

Superior orbital fissure

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4
Q

Where does CN IV open into base of skull?

A

Superior orbital fissure

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5
Q

Where does CN V1 open into base of skull?

A

Superior orbital fissure

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6
Q

Where does CN V2 open into base of skull?

A

Foramen rotundum

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7
Q

Where does CN V3 open into base of skull?

A

Foramen ovale

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8
Q

Where does CN VI open into base of skull?

A

Superior orbital fissure

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9
Q

Where does CN VII open into base of skull?

A

Internal acoustic meatus

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10
Q

Where does CN VIII open into base of skull?

A

Internal acoustic meatus

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11
Q

Where does CN IX open into base of skull?

A

Jugular foramen

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12
Q

Where does CN X open into base of skull?

A

Jugular foramen

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13
Q

Where does CN XI open into base of skull?

A

Jugular foramen

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14
Q

Where does CN XII open into base of skull?

A

Hypoglossal canal

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15
Q

What is 1?

A

Olfactory

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16
Q

What is 5?

A

Trigeminal

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17
Q

What is 4?

A

Trochlear

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18
Q

What is 3?

A

Oculomotor

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19
Q

What is 2?

A

Optic

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20
Q

What is 7?

A

Facial

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21
Q

What is 8?

A

Vestibulocochlear

22
Q

What is 6?

A

Abducent

23
Q

What is 12?

A

Hypoglossal

24
Q

What is 10?

A

Vagus

25
Q

What is 9?

A

Glossopharyngeal

26
Q

What is 11?

A

Accessory

27
Q

What type of fibres are present in cranial nerve I?

A

Special sensory

28
Q

What type of fibres are present in cranial nerve II?

A

Sensory

29
Q

What is the pathway of the optic nerve?

A

Optic nerve, optic chiasma, optic tract, lateral geniculate nucleus (LGN) and optic radiation

30
Q

What type of fibres are present in cranial nerve III?

A

Motor and parasympathetic

31
Q

What type of fibres are present in cranial nerve IV?

A

Motor

32
Q

What type of fibres are present in cranial nerve VI?

A

Motor

33
Q

What type of fibres are present in cranial nerve V?

A

Ophthalmic - sensory
Maxillary - sensory
Mandibular - sensory and motor

34
Q

What type of fibres are present in cranial nerve VII?

A

Sensory, motor and parasympathetic

35
Q

What type of fibres are present in cranial nerve VIII?

A

Sensory

36
Q

What type of fibres are present in cranial nerve IX?

A

Motor, sensory and parasympathetic

37
Q

What type of fibres are present in cranial nerve X?

A

Sensory, motor and parasympathetic

38
Q

What plexus does cranial nerve X form?

A

Oesophageal plexus

39
Q

What 2 branches of cranial nerve X innervate the muscles of the pharynx?

A

Mainly recurrent laryngeal nerve
But cricothyroid muscles by external laryngeal nerve

40
Q

What is 2 branches of mandibular nerve that supply jaw?

A

Inferior alveolar nerve
Lingual nerve - above IAN

41
Q

What type of fibres are present in cranial nerve XI?

A

Motor

42
Q

What type of fibres are present in cranial nerve XII?

A

Motor

43
Q

What nerves have a parasympathetic component?

A

III, VII, IX and X

44
Q

What cranial nerves are attached directly to brain?

A

Olfactory and optic

45
Q

What cranial nerves are attached to midbrain?

A

Oculomotor and trochlear

46
Q

What is the only cranial nerve to leave posterior aspect of brain?

A

Trochlear

47
Q

Which cranial nerve is attached to pons?

A

Trigeminal

48
Q

What cranial nerves leave the pontomedullary junction?

A

Abducent, facial and vestibulocochlear

49
Q

What cranial nerves are attached to medulla?

A

Glossopharyngeal, vagus, accessory and hypoglossal

50
Q

What cranial nerve can be tested in pupillary light relflex?

A

Oculomotor

51
Q

Which nerve can be tested by touch over surface of cheek?

A

Maxillary - trigeminal nerve

52
Q

What cranial nerve is tested when patient sticks out tongue?

A

Hypoglossal nerve

Neuro Anatomy (4 decks)

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