2.5 The Cranial Nerves of the Brain Flashcards
1
Q
What is the name of the Cranial Nerve I?
A
The Olfactory Nerve
2
Q
What is the name of the Cranial Nerve II?
A
The Optic Nerve
3
Q
What is the name of the Cranial Nerve III?
A
The Occulomotor Nerve
4
Q
What is the name of the Cranial Nerve IV?
A
The Trochlear Nerve
5
Q
What is the name of the Cranial Nerve V?
A
The Trigeminal Nerve
6
Q
What is the name of the Cranial Nerve VI?
A
The Abducens Nerve
7
Q
What is the name of the Cranial Nerve VII?
A
The Facial Nerve
8
Q
What is the name of the Cranial Nerve VIII?
A
The Vestibulocochlear Nerve
9
Q
What is the name of the Cranial Nerve IX?
A
The Glossopharyngeal Nerve
10
Q
What is the name of the Cranial Nerve X?
A
The Vagus Nerve
11
Q
What is the name of the Cranial Nerve XI?
A
The Accessory Nerve
12
Q
What is the name of the Cranial Nerve XII?
A
The Hypoglossal Nerve
13
Q
Which Foramina does Cranial Nerve I exit the Cranium through?
A
The Cribriform Plate of the Ethmoid Bone
14
Q
Which Foramina does Cranial Nerve II exit the Cranium through?
A
The Optic Foramen
15
Q
Which Foramina does Cranial Nerve III exit the Cranium through?
A
The Superior Orbital Fissure
16
Q
Which Foramina does Cranial Nerve IV exit the Cranium through?
A
The Superior Orbital Fissure
17
Q
Which Foramina does Cranial Nerve V1 exit the Cranium through?
A
The Superior Orbital Fissure
18
Q
Which Foramina does Cranial Nerve V2 exit the Cranium through?
A
The Foramen Rotundum
19
Q
Which Foramina does Cranial Nerve V3 exit the Cranium through?
A
The Foramen Ovale
20
Q
Which Foramina does Cranial Nerve VI exit the Cranium through?
A
The Superior Orbital Fissure
21
Q
Which Foramina does Cranial Nerve VII exit the Cranium through?
A
Internal Acoustic Meatus
22
Q
Which Foramina does Cranial Nerve VIII exit the Cranium through?
A
Internal Acoustic Meatus
23
Q
Which Foramina does Cranial Nerve IX exit the Cranium through?
A
The Jugular Foramen
24
Q
Which Foramina does Cranial Nerve X exit the Cranium through?
A
The Jugular Foramen
25
Which Foramina does Cranial Nerve XI exit the Cranium through?
The Jugular Foramen
26
Which Foramina does Cranial Nerve XII exit the Cranium through?
The Hypoglossal Canal
27
What is the name of the 1st Division of the Trigeminal Nerve (Cranial Nerve V1)?
The Ophthalmic Division of the Trigeminal Nerve
28
What is the name of the 2nd Division of the Trigeminal Nerve (Cranial Nerve V2)?
The Maxillary Division of the Trigeminal Nerve
29
What is the name of the 3rd Division of the Trigeminal Nerve (Cranial Nerve V3)?
The Mandibular Division of the Trigeminal Nerve
30
Where does Cranial Nerve I arise from?
The Olfactory Bulb
31
Where does Cranial Nerve I then travel?
Down the Olfactory Tract
32
Where does Cranial Nerve II arise from?
The Optic Disc
33
Where does Cranial Nerve II then travel?
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)
34
Where does Cranial Nerve III arise from?
The Anterior Midbrain
35
Where does Cranial Nerve III then travel?
1. Through the Brain
2. Through the Cavernous Sinus
3. Through the Superior Orbital Fissure into the Orbit
36
Where does Cranial Nerve IV arise from?
The Posterior Midbrain
37
Where does Cranial Nerve IV then travel?
1. Through the Brain
2. Through the Cavernous Sinus
3. Through the Superior Orbital Fissure into the Orbit
38
Where does Cranial Nerve V arise from?
The Pons
39
Where does Cranial Nerve V1 then travel?
1. Through the Brain
2. Through the Cavernous Sinus
3. Through the Superior Orbital Fissure into the Orbit
40
Where does Cranial Nerve V2 then travel?
1. Through the Brain
| 2. Through the Foramen Rotundum into the Maxilla
41
Where does Cranial Nerve V3 then travel?
1. Through the Brain
| 2. Through the Foramen Ovale into the Mandible
42
Where does Cranial Nerve VI arise from?
The Medial-most Pontomedullary Junction
43
Where does Cranial Nerve VI then travel?
1. Through the Brain
2. Through the Cavernous Sinus
3. Through the Superior Orbital Fissure into the Orbit
44
Where does Cranial Nerve VII arise from?
The Middle of the Pontomedullary Juction
45
Where does Cranial Nerve VII then travel?
1. Through the Brain
2. Through the Internal Auditory Meatus
3. Along the Facial Canal
4. Out of the Stylomastoid Foramen
46
Where does Cranial Nerve VIII arise from?
The Lateral-most Pontomedullary Junction
47
Where does Cranial Nerve VIII then travel?
1. Through the Brain
| 2. Through the Internal Auditory Meatus
48
Where does Cranial Nerve IX arise from?
The Superior-most part of the Ventero-Lateral Sulcus of the Medulla, Lateral to the Olive
49
Where does Cranial Nerve IX then travel?
1. Through the Brain
| 2. Through the Jugular Foramen
50
Where does Cranial Nerve XI arise from?
The Inferior-most part of the Ventero-Lateral Sulcus of the Medulla, Lateral to the Olive
51
Where does Cranial Nerve X then travel?
1. Through the Brain
2. Through the Jugular Foramen
3. This then supplies many different areas of the Body
52
Where does Cranial Nerve XI then travel?
1. Through the Brain
| 2. Through the Jugular Foramen
53
Where does Cranial Nerve XII arise from?
The Sulcus between the Medullary Pyramid and the Olive
54
Where does Cranial Nerve XII then travel?
1. Through the Brain
| 2. Through the Hypoglossal Canal
55
Where does Cranial Nerve XII then travel?
1. Through the Brain
| 2. Through the Hypoglossal Canal
56
What type of Fibers are present in Cranial Nerve I?
| And what is this for?
Special Sensory Fibers for the Sense of Smell
57
What type of Fibers are present in Cranial Nerve II?
| And what is this for?
Special Sensory Fibers or the Sense of Sight
58
What type of Fibers are present in Cranial Nerve III?
| And what is this for?
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
59
What type of Fibers are present in Cranial Nerve IV?
| And what is this for?
Motor Fibers for the Superior Oblique Muscle
60
What type of Fibers are present in Cranial Nerve V1?
| And what is this for?
General Sensory for the area above the Orbits
61
What type of Fibers are present in Cranial Nerve V2?
| And what is this for?
General Sensory for the area Below the Orbits and above the Superior Oral Cavity
62
What type of Fibers are present in Cranial Nerve V3?
| And what is this for?
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
63
What type of Fibers are present in Cranial Nerve VI?
| And what is this for?
Motor Fibers for the Lateral Rectus Muscle
64
What type of Fibers are present in Cranial Nerve VII?
| And what is this for?
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
65
What type of Fibers are present in Cranial Nerve VIII?
| And what is this for?
Special Sensory Fibers for the Sense of Hearing and Balance
66
What type of Fibers are present in Cranial Nerve IX?
| And what is this for?
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
67
What type of Fibers are present in Cranial Nerve X?
| And what is this for?
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
68
What type of Fibers are present in Cranial Nerve XI?
| And what is this for?
Motor Fibers for the Trapezius and the Sternocleidomastoid Muscle
69
What type of Fibers are present in Cranial Nerve XII?
| And what is this for?
Motor Fibers for the Intrinsic and Extrinsic Muscles of the tongue
70
Which Cranial Nerves have a Parasympathetic Component?
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)
71
Which Cranial Nerves are attached Directly to the Brain?
1. The Olfactory Nerve (Cranial Nerve I)
| 2. The Optic Nerve (Cranial Nerve II)
72
Which Cranial Nerves are attached Directly to the Midbrain?
1. The Occulomotor Nerve (Cranial Nerve III)
| 2. The Trochlear Nerve (Cranial Nerve IV)
73
Which Cranial Nerves are attached Directly to the Pons?
The Facial Nerve
74
Which Cranial Nerves are attached Directly to the Pontomedullary Junction?
1. The Abducens Nerve (Cranial Nerve VI)
2. The Facial Nerve (Cranial Nerve VII)
3. The Vestibulocochlear Nerve (Cranial Nerve VIII)
75
Which Cranial Nerves are attached Directly to the Medulla?
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)
76
Which Cranial Nerves are tested by the Pupillary Light Reflex?
1. The Optic Nerve (Cranial Nerve II)
| 2. The Occulomotor Nerve (Cranial Nerve III)
77
Which Cranial Nerve can be tested by touch over the surface of the Cheek?
The Maxillary Branch of the Trigeminal Nerve
78
What Cranial Nerve would you be testing if you asked the patient to stick their tongue out, and move it in different directions?
The Hypoglossal nerve (Cranial Nerve XII)
