Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Spot Test > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

(76 cards)

Start Studying
1
Q

Olfactory Nerve Function

A

Smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where does CN1 Emerge?

A

Underneath the Frontal Lobe

Not considered a ‘true’ cranial nerve because it doesn’t emerge from the brainstem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which foramen does CN1 pass through?

A

Cribriform Plate of the Ethmoid Bone

Tracts form bulbs. Nerves leave the bulb and pass through the ethmoid bone.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CN1 Test of Function?

A

Ask patient to smell familiar objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Optic Nerve Function

A

Vision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does CN2 emerge?

A

Hypothalamus rostral to the infundibulum, as tracts (after optic chiasma)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which foramen does CN2 pass through?

A

Optic Canals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CN2 Test of Function?

A

Test:

Acuity
Colour
Visual Field
Pupillary Light Reflex
Fundoscopy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Function of Oculomotor Nerve

A

Motor to 4/6 Extraocular muscles, Sphincter Pupillae, and Levator Palpabrae Superioris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where does CN3 emerge?

A

Interpeduncular Fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which autonomic ganglion is CN3 associated with?

A

Ciliary Ganglion- autonomic fibres to Sphincter Pupillae and Ciliaris muscles via CNV1.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Foramen of CN3?

A

Superior Orbital Fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CN3 Test of Function?

A

Follow finger and enquire about signs of double vision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Function of Trochlear Nerve

A

Motor innervation to Superior Oblique (SO4)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where does CN4 emerge?

A

Dorsal Brainstem- Inferior to Inferior Colliculi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Foramen of CN4?

A

Superior Orbital Fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

CN4 Test of Function?

A

Follow finger and enquire about signs of double vision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

CN5 Branches

A

Ophthalmic (V1)
Maxillary (V2)
Mandibular (V3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Function of Ophthalmic Nerve (V1)

A

Sensory to skin of Forehead

Autonomic innervation of Sphincter Pupillae and Ciliaris via CILIARY GANGLION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Foramen of V1?

A

Superior Orbital Fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Function of Maxillary Nerve (V2)

A

Sensation from Maxilla, Upper teeth, Nasal and Oral cavities

Autonomic innervation of Lacrimal Gland via PTERYGOPALATINE ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Foramen of V2?

A

Foramen Rotundum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Function of Mandibular Nerve (V3)

A

Sensation from Mandible and Lower Teeth
Sensation from Anterior 2/3 of Tongue

Motor to Muscles of Mastication and Tensor Tympani

Autonomic innervation of Submandibular and Sublingual glands via SUBMANDIBULAR ganglion

Autonomic innervation of Parotid Gland via OTIC ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Foramen of V3

A

Foramen Ovale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Test of Function of Trigeminal Nerve?
Test sensation over the face Corneal Reflex Clench teeth Jaw Jerk Reflex
26
Function of Abducens Nerve?
Motor innervation to Lateral Rectus (LR6)
27
Foramen of CN6?
Superior Orbital Fissure
28
Test of CN6 Function
Follow finger and enquire about signs of double vision
29
5 Main branches of the Facial Nerve, and their function?
``` Temporal Zygomatic Buccal Mandibular Cervical ``` Motor to the muscles of facial expression
30
Where does the facial nerve divide into its 5 main branches?
Inside the parotid gland
31
Where are sensory cell bodies of the facial nerve located?
Geniculate ganglion
32
Function of the Chorda Tympani
Passes through middle ear from CN7 to supply: Taste to Anterior 2/3 Tongue
33
Associated ganglion of Chorda Tympani?
SUBMANDIBULAR Ganglion- goes on to innervate submandibular gland
34
Function and associated ganglion of the Greater Petrosal Nerve?
PTERYGOPALATINE Ganglion- goes on to innervate the Lacrimal Gland
35
Test of Facial nerve function?
Do funny faces
36
Function of Vestibulo-cochlear Nerve
Balance via Vestibular component Hearing via Cochlear component
37
Foramen of the Facial Nerve?
Internal Acoustic Meatus The motor fibres than travel through the Stylomastoid Foramen
38
Where does the CN7 Arise?
Cerebellopontine Angle/ Lateral Pontomedullary junction?
39
Where does the CN5 arise?
Lateral Ventral Surface of the Pons
40
Where does CN6 arise?
Medial Pontomedullary Junction
41
Foramen of the CN8?
Internal Acoustic Meatus
42
Where does CN8 arise?
Cerebellopontine angle
43
Test of function of CN8
Rinne and Weber hearing test
44
Function of Glossopharyngeal Nerve?
Taste to Posterior 1/3 Tongue Sensation from Posterior 1/3 Tongue Sensation from the Pharynx
45
Associated Ganglion of CN9
OTIC Ganglion- goes on to supply the Parotid Gland
46
Foramen of CN9
Jugular Foramen
47
Test of CN9 Function
Test the patient's Gag Reflex
48
Function of Vagus Nerve
Muscles of the Pharynx, Larynx and Soft Palate Taste from the Epiglottis and Soft Palate Autonomic to the Thorax and GI tract
49
Where does CN9 emerge
Cerebellopontine Angle
50
Where does CN10 emerge
Posterolateral Sulcus of Medulla Medulla lateral to Olives
51
Foramen of CN10
Jugular foramen
52
Test of CN10 Function
Ask patient to speak and observe for uvula deviation
53
Function of the Accessory Nerve
Motor to Sternocleidomastoid and Trapezius
54
Where does CN11 emerge
Posterolateral Sulcus of Medulla Medulla, Lateral to the olives, inferior to CN10 rootlets
55
Foramen of CN11
Jugular Foramen
56
Test of CN11 function
Shrug shoulders and turn head laterally against resistance.
57
Function of Hypoglossal Nerve
Motor to intrinsic/extrinsic muscles of tongue except the Palatoglossus
58
Where does CN12 emerge
Anterolateral Sulcus of Medulla
59
Foramen of CN12
Hypoglossal Canal
60
Test of CN12 Function
Protrude tongue Observe for wasting, deviation, fasciculations (random movements)
61
What is an Acoustic Neuroma and which cranial nerves may be compressed?
A Tumour of the Vestibulocochlear nerve May compress CN5, CN7, CN8, CN9
62
Signs of a Trigeminal Nerve lesion?
Deviation of the mandible towards the IPSILATERAL side of the lesion
63
Signs of a Vagus nerve lesion?
Uvula deviates to the CONTRALATERAL direction from the side of the lesion
64
Signs of Hypoglossal nerve lesion?
Tongue deviates to IPSILATERAL side of the lesion
65
Symptoms of Horner's Syndrome?
Anhidrosis Ptosis Miosis Vasodilation
66
Causes of Oculomotor Nerve damage
Micovascular disease e.g. Diabetes Demyelinating diseases Increased Intracranial Pressure (Subarachnoid Haemorrhage, Space-Occupying Lesion
67
Where does the Greater Palatine nerve arise, and what is its function?
Pterygopalatine Ganglion Supplies gums, mucous membrane and glands of the hard palate
68
Where does the Lesser Palatine nerve arise, and what is its function?
Pterygopalatine ganglion Soft palate, Tonsil, Uvula
69
What is Trigeminal Neuralgia?
A neuropathic disorder causing intense pain in the face
70
What is Hyperacusis?
Increased sensitivities to certain frequencies/volumes Due to stapedius paralysis (CN7 lesion distal to the Geniculate Ganglion)
71
What is Hyperreflexia?
Exaggerated reflexes due to Upper Motor Neurone Disease/Spinal Cord Injury/Hyperthyroidism
72
What is Hyporeflexia?
Reduced or absent reflexes due to Lower Motor Neurone disease
73
Cranial Nerves involved in the Pupillary Light Reflex?
Sensory- Optic Nerve (CN2) Motor- Oculomotor Nerve (CN3)
74
Cranial nerves involved in the Corneal Reflex?
Sensory- Trigeminal Nerve (CN5) Motor- Facial Nerve (CN7)
75
Cranial nerves involved in the Gag Reflex?
Sensory- Glossopharyngeal (CN9) Motor- Vagus (CN10)
76
Cranial nerves involved in the Jaw Jerk Reflex?
Sensory- Trigeminal (CN5) Motor- Trigeminal (CN5)

Spot Test (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions