Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Y2 Neuro Anat > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

What goes through the optic canal

A

Optic nerve and opthalmic artery

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

What goes through the carotid canal

A

ICA

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

What goes through the foramen magnum

A

Spinal cord and vertebral artery

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

Which CN do not arise from the brainstem

A

I and II olfactory and optic

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

Functions of CN I and II (S/M/A)

A

Smell and vision

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

Which CN from midbrain

A

Oculomotor and Trochlear

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

Function of midbrain nerves

A

Eye movement

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

Difference between oculomotor and Trochlear

A

Trochlear only involved in superior oblique

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

Any autonomic functions of midbrain nerves

A

Dilates pupil focuses lens

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

What are the three branches of the trigeminal nerves

A

Opthalmic
Maxillary
Mandibular

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

Where does trigeminal nerve arose from

A

Pons

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

CNV (S/M/A)?

A

All SA, M from Mandibular

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

Where is sensation to trigeminal nerve from

A

V1- skin above eye and nasal cavity
V2- skin between eye and mouth
V3- temporal region and mandibular teeth and sensation at ear (auriculotemporal nerve)

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

Automic innervation of CNV

A

V1-Dilates pupil
V2-Lacrimal, nasal, palatine,pharyngeal glands
V3- salivary galnds ( submandibular and sublingual)

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

Where do CN VI-XII come from

A

Medulla

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

Role of CN VI and what is it

A

Abducens- movement of eyeball
Lateral rectus

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

CN VII name? (S/M/A)

A

Facial,
M- muscles of facial expression
S- taste and sensation at ear
A- Salivary and lacrimal glands

18
Q

Role of CN VIII

A

Vestibulocochlear- sensory, hearing and balance

19
Q

CN IX

A

Glossopharyngeal
S- oropharynx, middle ear, carotid body and sinus, posterior 1/3 tongue, gag reflex
M- stylopharyngeus
A- parotid gland

20
Q

CN X

A

S- Ear, larynx and pharynx Eg.auricular branch to ear
M- Pharynx and larynx egmsuperior pharyngeal constrictor
A- Heart and digestive organs

21
Q

CN XI

A

SCM and trapezius

22
Q

CN XII

A

Tongue movement (intrinsic tongue muscles etc., Speech, swallowing )

23
Q

Eye movements

A

Adduct- MR
Abduct- LR
Upward (O)- IO
Upward(I) - SR
Downward (O) - SO
Downward (I)- IR

24
Q

Parasympathetic innervation of CN III

A

sphincter pupillae to constrict pupil and ciliary muscles to shorten lens and focus on short range objects

25
Q

Parasympathetic innervation of CN VII

A

Mucosa of the oral and nasal cavities and pharynx produce mucous
Lacrimal glands produce tears and submandibular and sublingual glands produce saliva

26
Q

PS innervation of CN IX

A

Parotid gland produces saliva

27
Q

PN innervation of CN X

A

Reduces resting heart rate and promoting smooth muscle contraction and secretion of digestive juices

28
Q

What is one LMN palsy

A

Bell’s Palsy, idiopathic and mostly unilateral - affects facial nerve

29
Q

What causes hyperacusis

A

Non functional stapedius muscle

30
Q

What causes dry eye

A

Non functional orbicularis oculii

31
Q

What causes dribbling when eating

A

Loss of tone in facial muscles - buccinator in cheek, Obilcularis Oris

32
Q

What cause diplopia when looking at side ipsilateral to palsy

A

Problem with lateral rectus- abducens- (CNVI)

33
Q

Vertical diplopia, particularly noticeable on down gaze

A

Superior oblique, trochlear (CN IV)

34
Q

Ptosis, eye looks down when attempting to stare ahead

A

Problems with levator palpabrae superior is, inferior and medial rectus- and inferior oblique - oculomotor, III

35
Q

What nucleus in the thalamus is involved in vision

A

lateral geniculate nucleus

36
Q

Where do CN III and IV arise from

A

Ant and post midbrain respectively

37
Q

What two nerves involved in dilation of pupil

A

Opthalmic and Oculomotor

38
Q

Which three nerves are involved in AI to salivary glands

A

Mandibular and facial and glossopharyngeal

39
Q

Which two nerves are involved in AI to lacrimal glands

A

Maxillary and facial

40
Q

What three other glands does the Maxillary Nerve innervate

A

Nasal, palatine, pharyngeal

41
Q

What nerve innervates parotid gland

A

Glossopharyngeal

42
Q

What motor innervation does CN IX supply

A

Stylopharyngeus muscle

Y2 Neuro Anat (5 decks)

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