Cranial nerves Flashcards
1
Q
CN II
A
Olfactory
2
Q
CN II
A
Optic
3
Q
CN III
A
Oculormotor
4
Q
CN IV
A
Trochlear
5
Q
CN V
A
Trigeminal
6
Q
CN VI
A
Abducens
7
Q
CN VII
A
Facial
8
Q
CN VIII
A
Vestibulocochlear
9
Q
CN IX
A
Glosspharyngeal
10
Q
CN X
A
Vagus
11
Q
CN XI
A
Spinal accessory
12
Q
CN XII
A
Hypoglossal
13
Q
Exit of olfactory
A
Cribiform plate
14
Q
Cribiform plate is part of which born?
A
Ethmoid
15
Q
Function of CN I
A
Sensory: smell
16
Q
Exit of optic
A
Optic canal
17
Q
Nerves of cerebrum
A
Olfactory
Optic
18
Q
Function of CN II
A
Sensory:Vision
19
Q
Exit of oculomotor
A
Superior orbital fissure
20
Q
Nerves of midbrain
A
Oculormotor
Trochlear
21
Q
Function of oculormotor:
A
Motor:
4 extrinsic eye muscles
Lavator palpebae superioris
Pupillary sphincter
22
Q
Exit of trochlear
A
Superior orbital fissure
23
Q
Function of CN III
A
Motor:
Superior oblique
24
Q
Exit of trigeminal (1,2,3)
A
- Superior orbital fissure
- Foramen rotundum
- Foramen ovale
25
Parts of trigeminal nerve:
1. Opthalamic
2. maxillary
3. mandibular
26
V1 function
Sensory:
Scalp
Forehead
Nose
27
V2 function:
```
Sensory:
Cheeks
Lower eye lid
Nasal mucosa
Upper lip
Upper teeth
Palate
```
28
V3 function:
Sensory:
Anterior 2/3rd of tongue
Skin over mandible and lower teeth
Muscles of mastication
29
Pons nerves:
Trigeminal
Abducens
Facial
Vestibulocochlear
30
Exit of abducens:
Superior orbital fissure
31
Function CN VI
Motor:
| Lateral rectus
32
Exit of facial:
Internal acoustic meastus, stylomatoid foramen
33
Function of CN VII
Sensory: Sensation of outer part of ear
taste from anterior 2/3rd of tongue, hard and soft palate
Muscles of facial expression
Motor:
Lacrimal, submandibular, sublingual glands
34
Exit of vestibulococlear
Internal acoustic meatus
35
Function of CN VIII
Sensory:
| hearing and balance
36
Exit of glossopharyngeal
Jugular foramen
37
Function of CN IX:
Sensory:
Sensation and taste from posterior 1/3rd tongue
External and middle ear cavity
Carotid body and sinus
Motor:
Parotid gland
Stylopharygeus
38
Exit of vagus:
Jugular foremen
39
Function of CN X
Sensory:
External ear, larynx, pharynx, throacic and abdominal wall
Taste from epiglottis and region of tongue
Motor:
Smooth muscles of pharynx, larynx and most GI tract
Most muscles of pharynx and larynx
40
Exit of spinal accessory:
Jugular foramen
41
Function of CN XI
Motor:
Trapezius
Sternocleidomastoid
42
Exit of hypoglossal
Hypoglossal canal
43
Function of CN XII
Intrinsic and extrinsic tongue muscles
44
Nerves of the medulla:
Glossopharyngeal
Vagus
Spinal accessory
Hypoglossal
