Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Head, Neck And Neuroanatomy > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

(75 cards)

Start Studying
1
Q

Name all the cranial nerves

A

On Old Olympus Towering Tops A Friendly Viking Grew Vines And Hops

Olfactory, optic, occulomotor, trochlear, trigeminal, abducent, facial, vetibulocochlear, glossopharangeal, vagus, accessory, hypoglossal

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

What is cranial nerve I?

A

Olfactory

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

What is CNII?

A

Optic nerve

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

What is CNIII?

A

Occulomotor

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

What is CNIV?

A

Trochlear

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

What is CNV?

A

Trigeminal nerve

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

What is cranial nerve VI?

A

Abducens Nerve

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

What is CNVII?

A

Facial nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is CNVIII?

A

Vestibulocochear nerve

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

What is CNIX?

A

Glossopharangeal nerve

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

What is CNX?

A

Vagus nerve

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

What is CNXI?

A

Accessory nerve

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

What is CNXII?

A

Hypoglossal nerve

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

What is the pathway of CNI?

A

Root of nasal cavity-> cribriform plates -> olfactory bulb -> olfactory tract-> temporal lobe

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

Where does CNI come from?

A

Forebrain

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

What does CNI do?

A

It is special sensory for olfaction

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

What does CNI do?

A

Special sensory- olfaction

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

How do you test for CNI?

A

You don’t really but ask about changes in smell and taste or if you have smelling salts use them

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

What are the cause of problems with CNI?

A

Shear at the cribriform plate- head injuries

Tumours in the frontal lobe

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

What is is the pathway of CNII?

A

Retinal optic ganglion cells-> axons from optic nerve -> exits back of orbit via optic canal-> fibres cross and merge at optic chiasm -> occipital lobe

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

Where does CNII come from?

A

Forebrain

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

What does CNII do?

A

Special sensory- part of the visual pathway

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

What causes problems with CNII?

A

Meningitis as meninges is carried with the nerve

Raised IC pressure

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

How do you test for the optic nerve?

A

Use a snellen chart

Visual field response

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is the pathway of CNIII?
Midbrain -> lateral wall of cavernous sinus -> superior orbital fissure (it’s occulomotor it goes to orbital socket)
26
Where does CNIII come from?
Midbrain
27
What does CNIII do?
Motor- innervates most muscles that move the eye | Parasympathetic- levator plapebrae superoris and pupillary sphincter
28
How do you test for CNIII?
Inspect eyelids and pupil size | Test eye movement and pupillary reflex
29
What may a patient have if they have a problem with CNIII?
Double vision Pupillary dilation Eye in down and out position
30
What are the cause of problems with CNIII?
Raised IC pressure | Vascular
31
What is the pathway of CNIV?
Midbrain -> cavernous sinus -> superior orbital fissure -> superior oblique muscle
32
Where does CNIV come from?
Midbrain
33
What does CNIV do?
Innervates superior oblique muscle that moves the eye
34
How do you test for CNIV?
Check movement of the eye
35
What is the pathway of the opthalmic division of the trigeminal nerve?
Pons->trigeminal ganglion -> opthalmic -> superior orbital fissure
36
What is the pathway of the CNVb?
Pons-> trigeminal ganglion -> foramen rotundum -> pterygopalatine space
37
What is the pathway of CNVc?
Pons-> trigeminal ganglion -> foramen ovale -> infratemporal fossa
38
What are the branches of the maxillary division of the trigeminal nerve?
Infraorbital - comes from the floor of the orbit | Superior alveolar- teeth and gums and nerve blocks
39
Where do the branches of the mandibular division of the trigeminal nerve go to?
Inferior alveolar nerve - exits as mental nerve
40
What is a branch of the mandibular division of the trigeminal nerve?
Lingual nerve
41
What is the pathway of CNVI?
Between pons and medulla-> cavernous sinus-> superior orbital fissure -> orbit
42
Where does CNVI come from?
Pons
43
What does CNVI do?
Innervates lateral rectus muscle that moves the eye
44
How do you test for CNVI?
Check eye movements
45
What can a problem with cranial nerve VI cause?
Double vision
46
What causes problems with cranial nerve VI?
Raised intercranial pressure
47
What are the branches of CNVII?
Greater petrosal sinus Temporal, Zygomatic, Buccal, Mandibular, Cervical Chorda tampani Nerve to stapedius
48
Where doe CNVII go through?
Petrous bone ( internal auditory meatus)
49
What does CNVII do?
Anterior 2/3s of tongue Autonomic - lacrimal glands, mucosal glands, salivary glands Motor- muscles of facial expression, dampens excessive vibration for the bones of inner ear General sensory- small area of the ear
50
How do you test for CNVII?
Corneal reflex and use muscles of facial expression
51
What happens when facial nerve is damaged?
Hyperacusis Dry eyes- eye ulcers Altered taste
52
What is the pathway of CNIII?
Cochlear semi circular canal -> internal acoustic meatus -> lower pons
53
What does CNVIII do?
Hearing and balance
54
How do you test for cranial nerve VIII?
Testing hearing | Enquiring balance
55
What is the cause of problems of cranial nerve VIII?
Pathology of semi circular canals
56
What are the signs associated with damage in the vestibulocochlear nerve?
Vertigo | Acoustic neuroma
57
What is the path of CNIX?
Goes through the jugular foramen
58
Where does CNIX come from?
Medulla
59
What does CNIX do?
General sensation- palatine tonsils and Oro pharanyx, middle ear and tympanic membrane, sensory from carotid body and sinus Special sensory- taste and general sensation of posterior 1/3 of tongue Innervates parotid gland- parasympathetic innervation Supplies one muscle involved in swallowing
60
What is the path of CNX?
Medulla -> jugular foramen -> carotid sheath -> through neck into thorax and abdomen
61
Where does CNX come from?
Medulla
62
What does CNX do?
Sensory to lower pharanyx and larynx, muscles of soft palate | Parasympathetic to thorax - heart
63
How to test for CNX?
Check patients speech, cough and ability to swallow , gag reflex and check uvula does not move off the midline
64
What is the path of CNX?
Medulla-> jugular foramen -> carotid sheath -> through neck into thorax and abdomen
65
Where does CNX come from?
Medulla
66
What does CNX do?
Sensory to lower pharnyx and larynx, muscle of soft palate and parasympathetic to the thorax
67
What causes problems with CNX?
``` Isolated leisions (rarely) Injury to recurrent laryngeal following surgery ```
68
What is the path of CNXI?
Medulla -> jugular foramen -> deep to SCM -> deep to trapezius
69
Where does CNXI come from?
Medulla
70
What does CNXI do?
Motor to sternocleidomastoid and trapezius
71
How to test for CNXI?
Shrug and turn head against resistance
72
What is the path of CNXII?
Medulla -> hypoglossal canal -> medial to angle of mandible -> crosses internal and external carotid arteries
73
Where does CNXII come from?
Medulla
74
What does CNXII do?
Innervates the muscles of the tongue (except one)
75
How do you test for it?
Inspection and movement of the tongue

Head, Neck And Neuroanatomy (4 decks)

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