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neuro anatomy > 2.5 The Cranial Nerves of the Brain > Flashcards

2.5 The Cranial Nerves of the Brain Flashcards

1
Q

What is the name of the Cranial Nerve I?

A

The Olfactory Nerve

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2
Q

What is the name of the Cranial Nerve II?

A

The Optic Nerve

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3
Q

What is the name of the Cranial Nerve III?

A

The Occulomotor Nerve

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4
Q

What is the name of the Cranial Nerve IV?

A

The Trochlear Nerve

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5
Q

What is the name of the Cranial Nerve V?

A

The Trigeminal Nerve

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6
Q

What is the name of the Cranial Nerve VI?

A

The Abducens Nerve

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7
Q

What is the name of the Cranial Nerve VII?

A

The Facial Nerve

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8
Q

What is the name of the Cranial Nerve VIII?

A

The Vestibulocochlear Nerve

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9
Q

What is the name of the Cranial Nerve IX?

A

The Glossopharyngeal Nerve

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10
Q

What is the name of the Cranial Nerve X?

A

The Vagus Nerve

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11
Q

What is the name of the Cranial Nerve XI?

A

The Accessory Nerve

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12
Q

What is the name of the Cranial Nerve XII?

A

The Hypoglossal Nerve

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13
Q

Which Foramina does Cranial Nerve I exit the Cranium through?

A

The Cribriform Plate of the Ethmoid Bone

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14
Q

Which Foramina does Cranial Nerve II exit the Cranium through?

A

The Optic Foramen

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15
Q

Which Foramina does Cranial Nerve III exit the Cranium through?

A

The Superior Orbital Fissure

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16
Q

Which Foramina does Cranial Nerve IV exit the Cranium through?

A

The Superior Orbital Fissure

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17
Q

Which Foramina does Cranial Nerve V1 exit the Cranium through?

A

The Superior Orbital Fissure

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18
Q

Which Foramina does Cranial Nerve V2 exit the Cranium through?

A

The Foramen Rotundum

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19
Q

Which Foramina does Cranial Nerve V3 exit the Cranium through?

A

The Foramen Ovale (and sometimes branches into spinosum)

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20
Q

Which Foramina does Cranial Nerve VI exit the Cranium through?

A

The Superior Orbital Fissure

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21
Q

Which Foramina does Cranial Nerve VII exit the Cranium through?

A

Internal Acoustic Meatus

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22
Q

Which Foramina does Cranial Nerve VIII exit the Cranium through?

A

Internal Acoustic Meatus

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23
Q

Which Foramina does Cranial Nerve IX exit the Cranium through?

A

The Jugular Foramen

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24
Q

Which Foramina does Cranial Nerve X exit the Cranium through?

A

The Jugular Foramen

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25
Q

Which Foramina does Cranial Nerve XI exit the Cranium through?

A

The Jugular Foramen

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26
Q

Which Foramina does Cranial Nerve XII exit the Cranium through?

A

The Hypoglossal Canal

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27
Q

What is the name of the 1st Division of the Trigeminal Nerve (Cranial Nerve V1)?

A

The Ophthalmic Division of the Trigeminal Nerve

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28
Q

What is the name of the 2nd Division of the Trigeminal Nerve (Cranial Nerve V2)?

A

The Maxillary Division of the Trigeminal Nerve

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29
Q

What is the name of the 3rd Division of the Trigeminal Nerve (Cranial Nerve V3)?

A

The Mandibular Division of the Trigeminal Nerve

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30
Q

What is the route for Cranial Nerve I?

A

1) The Olfactory Bulb

2) Down the Olfactory Tract

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31
Q

Where does Cranial Nerve II arise from?

A

The Optic Disc

32
Q

Where does Cranial Nerve II arise from then travel to?

A

Arises in the Optic Disc
Then it travels:
1. Down the Optic Nerve
2. Into the Optic Ciasma where the Nasal fibers cross over to the alternate side
3. Down the Optic Tract
4. Into the Lateral Geniculate Body (in the Thalamus)
5. Through the Optic Radiations into the Primary Visual Cortex in the Occipital Lobe (Area 17)

33
Q

Where does Cranial Nerve III arise from then travel to?

A

The Anterior Midbrain

Then:

  1. Through the Brain
  2. Through the Cavernous Sinus
  3. Through the Superior Orbital Fissure into the Orbit
34
Q

Where does Cranial Nerve IV arise from?

A

The Posterior Midbrain

35
Q

Where does Cranial Nerve IV arise from then travel to?

A 
The Posterior Midbrain
Then:
1. Through the Brain
2. Through the Cavernous Sinus
3. Through the Superior Orbital Fissure into the Orbit
36
Q

Where does Cranial Nerve V arise from?

A

The Pons

37
Q

What is the route for Cranial Nerve V1?

A

The Pons

  1. Through the Brain
  2. Through the Cavernous Sinus
  3. Through the Superior Orbital Fissure into the Orbit
38
Q

What is the route for Cranial Nerve V2?

A

The Pons

  1. Through the Brain
  2. Through the Foramen Rotundum into the Maxilla
39
Q

What is the route for Cranial Nerve V3?

A

The Pons

  1. Through the Brain
  2. Through the Foramen Ovale into the Mandible
40
Q

Where does Cranial Nerve VI arise from?

A

The Medial-most Pontomedullary Junction

41
Q

Where does Cranial Nerve VI then travel?

A
  1. Through the Brain
  2. Through the Cavernous Sinus
  3. Through the Superior Orbital Fissure into the Orbit
42
Q

Where does Cranial Nerve VII arise from?

A

The Middle of the Pontomedullary Juction

43
Q

Where does Cranial Nerve VII arise from then travel to?

A 
Pontomedullary Juction
Then:
1. Through the Brain
2. Through the Internal Auditory Meatus
3. Along the Facial Canal
4. Out of the Stylomastoid Foramen
44
Q

Where does Cranial Nerve VIII arise from?

A

The Lateral-most Pontomedullary Junction

45
Q

Where does Cranial Nerve VIII arise from then travel to?

A

Pontomedullary Junction
Then:
1. Through the Brain
2. Through the Internal Auditory Meatus

46
Q

Where does Cranial Nerve IX arise from?

A

The Superior-most part of the Ventero-Lateral Sulcus of the Medulla, Lateral to the Olive

47
Q

Where does Cranial Nerve IX arise from then travel to?

A

Ventero-Lateral Sulcus of the Medulla
Then:
1. Through the Brain
2. Through the Jugular Foramen

48
Q

Where does Cranial Nerve X arise from?

A

The Inferior-most part of the Ventero-Lateral Sulcus of the Medulla, Lateral to the Olive

49
Q

Where does Cranial Nerve X arise from then travel to?

A 
Ventero-Lateral Sulcus of the Medulla
Then:
1. Through the Brain
2. Through the Jugular Foramen
3. This then supplies many different areas of the Body
50
Q

Where does Cranial Nerve XII arise from?

A

The Sulcus between the Medullary Pyramid and the Olive

51
Q

Where does Cranial Nerve XII arise from then travel to?

A

The Sulcus between the Medullary Pyramid and the Olive

  1. Through the Brain
  2. Through the Hypoglossal Canal
52
Q

What type of Fibers are present in Cranial Nerve I?

And what is this for?

A

Special Sensory Fibers for the Sense of Smell

53
Q

What type of Fibers are present in Cranial Nerve II?

And what is this for?

A

Special Sensory Fibers or the Sense of Sight

54
Q

What type of Fibers are present in Cranial Nerve III?

And what is this for?

A
  1. Parasympathetic Fibers for the Intrinsic Muscles of the Eye
  2. Motor Fibers for the movement of the:
    a) Superior Rectus Muscle
    b) Inferior Rectus Muscle
    c) Medial Rectus Muscle
    d) Inferior Oblique Muscle
    e) Levator Palpebral Superioris Muscle
55
Q

What type of Fibers are present in Cranial Nerve IV?

And what is this for?

A

Motor Fibers for the Superior Oblique Muscle

56
Q

What type of Fibers are present in Cranial Nerve V1?

And what is this for?

A

General Sensory for the area above the Orbits

57
Q

What type of Fibers are present in Cranial Nerve V2?

And what is this for?

A

General Sensory for the area Below the Orbits and above the Superior Oral Cavity

58
Q

What type of Fibers are present in Cranial Nerve V3?

And what is this for?

A
  1. General Sensory Fibers for the area Below and Within the Oral Cavity
  2. Motor Fibers for the Muscles of Mastication:
    a) Masseter Muscle
    b) Temproalis Muscle
    c) Medial Pterygoid Muscles
    d) Lateral Pterygoid Muscles
59
Q

What type of Fibers are present in Cranial Nerve VI?

And what is this for?

A

Motor Fibers for the Lateral Rectus Muscle

60
Q

What type of Fibers are present in Cranial Nerve VII?

And what is this for?

A
  1. General Sensory Fibers for the External Auditory Meatus
  2. Special Sensory Fibers for the Sense of Taste from the Anterior 2/3 of the Tongue via the Chorda Tympani Nerve
  3. Motor Fibers for the Muscles of Facial Expression:
    a) Temporal Muscles
    b) Zygomatic Muscles
    c) Buccal Muscles
    d) Mandibular Muscles
    e) Cervical Muscles
61
Q

What type of Fibers are present in Cranial Nerve VIII?

And what is this for?

A

Special Sensory Fibers for the Sense of Hearing and Balance

62
Q

What type of Fibers are present in Cranial Nerve IX?

And what is this for?

A
  1. Motor Fibers for the Stylopharyngeus Muscle
  2. Parasympathetic Fibers for the Secretomotor function of the Parotid Gland
  3. Special Sensory Fibers for the Posterior 1/3 of the Tongue
  4. General Sensory Fibers for the Cutaneous Sensations
63
Q

What type of Fibers are present in Cranial Nerve X?

And what is this for?

A
  1. Special Sensory Fibers for the Sense of Taste from the Epiglottis and Palate
  2. General Sensory Fibers for the Auricle / External Auditory Meatus
  3. Parasympathetic Fibers for the Heart, Bronchi, and Gastrointestinal System
  4. Motor Fibers for the Pharynx, Larynx, Palate, and Oesophagus
  5. Visceral Sensory Fibers for the Respiratory, Cardiovascular and Gastrointestinal Systems
64
Q

What type of Fibers are present in Cranial Nerve XI?

And what is this for?

A

Motor Fibers for the Trapezius and the Sternocleidomastoid Muscle

65
Q

What type of Fibers are present in Cranial Nerve XII?

And what is this for?

A

Motor Fibers for the Intrinsic and Extrinsic Muscles of the tongue

66
Q

Which Cranial Nerves have a Parasympathetic Component?

A
  1. The Occulomotor Nerve (Cranial Nerve III)
  2. The Facial Nerve (Cranial Nerve VII)
  3. The Glossopharyngeal nerve (Cranial Nerve IX)
  4. The Vagus Nerve (Cranial Nerve X)
67
Q

Which Cranial Nerves are attached Directly to the Brain?

A
  1. The Olfactory Nerve (Cranial Nerve I)

2. The Optic Nerve (Cranial Nerve II)

68
Q

Which Cranial Nerves are attached Directly to the Midbrain?

A
  1. The Occulomotor Nerve (Cranial Nerve III)

2. The Trochlear Nerve (Cranial Nerve IV)

69
Q

Which Cranial Nerves are attached Directly to the Pons?

A

The Facial Nerve

70
Q

Which Cranial Nerves are attached Directly to the Pontomedullary Junction?

A
  1. The Abducens Nerve (Cranial Nerve VI)
  2. The Facial Nerve (Cranial Nerve VII)
  3. The Vestibulocochlear Nerve (Cranial Nerve VIII)
71
Q

Which Cranial Nerves are attached Directly to the Medulla?

A
  1. The Glossopharyngeal Nerve (Cranial Nerve IX)
  2. The Vagus Nerve (Cranial Nerve X)
  3. The Accessory Nerve (Cranial Nerve XI)
  4. The Hypoglossal Nerve (Cranial Nerve XII)
72
Q

Which Cranial Nerves are tested by the Pupillary Light Reflex?

A
  1. The Optic Nerve (Cranial Nerve II)

2. The Occulomotor Nerve (Cranial Nerve III)

73
Q

Which Cranial Nerve can be tested by touch over the surface of the Cheek?

A

The Maxillary Branch of the Trigeminal Nerve

74
Q

What Cranial Nerve would you be testing if you asked the patient to stick their tongue out, and move it in different directions?

A

The Hypoglossal nerve (Cranial Nerve XII)

75
Q

Where does Cranial Nerve XI arise from then travel to?

A

Pondomedullary Junction
Then:
1. Through the brain
2. Down Jugular foramen

neuro anatomy (13 decks)

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