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Neurology 1 > Practical 06 - Eye CNII, CNIII, CNIV, CNVI, Hearing, CNVIII > Flashcards

Practical 06 - Eye CNII, CNIII, CNIV, CNVI, Hearing, CNVIII Flashcards

1
Q

which conjunctiva is found lining the inferior eyelid

a.palpebral
b.bulbar

A

a.palpebral

reflects onto eyeball at inferior conjunctival fornix, becoming bulbar conjunctiva

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2
Q

which conjunctiva is found lining the sclera

a.palpebral
b.bulbar

A

b.bulbar

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3
Q

which part of the lacrimal gland is most superior

a.orbital
b.palpebral

A

a.orbital

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4
Q

what is the correct order of the flow of tears out of the eye

a.lacrimal canaliculi, lacrimal duct, nasolacrimal duct
b.lacrimal duct, lacrimal caniliculi, nasolacrimal duct
c.nasolacrimal duct, lacrimal duct , lacrimal caniliculi

A

a.lacrimal canaliculi, lacrimal duct, nasolacrimal duct

opens into inferior nasal meatus
running nose when crying

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5
Q

what is the pulley system that attaches the superior oblique to the eyeball known as

a.lacrimal
b.trochlear
c.ethmoid

A

b.trochlear

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6
Q

where does levator palpebrae superioris insert

a.posterior eyeball
b.superior eyeball
c.lateral eyeball
d.medial eyeball
e.upper eyelid
f.lower eyelid

A

e.upper eyelid

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7
Q

what muscle elevates the eyelid

a. medial rectus
b.lateral rectus
c.superior rectus
d.inferiorrectus
e.superior oblique
f.levator palpebrae superioris

A

f.levator palpebrae superioris

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8
Q

what action is superior rectus responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out

A

a.looking up and in

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9
Q

what action is inferior rectus responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out

A

c.looking down and in

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10
Q

what action is lateral rectus responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out
e.looking out
f.looking in

A

e.looking out

abducting

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11
Q

what action is medial rectus responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out
e.looking out
f.looking in

A

f.looking in

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12
Q

what action is superior oblique responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out
e.looking out
f.looking in

A

d.looking down and out

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13
Q

what action is inferior oblique responsible for

a.looking up and in
b.looking up and out
c.looking down and in
d.looking down and out
e.looking out
f.looking in

A

b.looking up and out

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14
Q

which capsule surrounds the eye

a.cavernous
b.tenons
c.sinosal
d.orbital

A

b.tenons

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15
Q

which division of the trigeminal nerve does the frontal nerve arise from

a.maxillary
b.mandibular
c.opthalmic

A

c.opthalmic

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16
Q

what structure does the frontal nerve travle through to reach the eye

a.optical channel
b.superior orbital fissure
c.inferior orbital fissure
d.foramen rotundum

A

b.superior orbital fissure

17
Q

the supraorbital and supratrochlear nerves are branches of which division of the trigeminal nerve

a.opthalmic
b.maxillary
c.mandibular

A

a.opthalmic

becomes frontal nerve which then divides into supratrochlear and supraorbital

18
Q

the supraorbital and supratrochlear nerves are …

a.motor
b.sensory
c.sensory motor

A

b.sensory

19
Q

which vein runs with the frontal nerve

a.superior opthalmic vein
b.inferior opthalmic
c.supraorbital
d.supratrochlear

A

a.superior opthalmic vein

20
Q

which of these veins drains directly to the cavernous sinus so is a potential route of infection into the cranial cavity

a.superior opthalmic vein
b.inferior opthalmic
c.supraorbital
d.supratrochlear

A

a.superior opthalmic vein

21
Q

which of these muscles does not arise from the common tendinous ring

a. medial rectus
b.lateral rectus
c.superior rectus
d.inferior rectus
e.superior and inferior oblique
f.levator palpebrae superioris

A

e.superior oblique and inferior oblique

22
Q

where does the superior oblique arise

a.common tendinous origin
b.sphenoid bone
c.floor of the orbit

A

b.sphenoid bone

23
Q

where does the inferior oblique arise

a.common tendinous origin
b.sphenoid bone
c.floor of the orbit and maxilla

A

c.floor of the orbit and maxilla

24
Q

which cranial nerve innervates lateral rectus

a.CN3
b.CN4
c.CN6

A

c.CN6

abducent

LR6 SO4 REM3

25
Q

which cranial nerve innervates superior oblique

a.CN3
b.CN4
c.CN6

A

b.CN4
trochlear

LR6 SO4 REM3

26
Q

which cranial nerve innervates inferior oblique

a.CN3
b.CN4
c.CN6

A

a.CN3

occulomotor

27
Q

which cranial nerve innervates medial rectus

a.CN3
b.CN4
c.CN6

A

a.CN3

28
Q

which cranial nerve innervates superior rectus

a.CN3
b.CN4
c.CN6

A

a.CN3

29
Q

which cranial nerve innervates inferior rectus

a.CN3
b.CN4
c.CN6

A

a.CN3

30
Q

the frontal nerve, lacrimal nerve, trochlear nerve, occulomotor nerve , abducent nerve and superior opthalmic vein trvale throigh which structure

a.foramen rotundum
b.foramen ovale
c.cavernous sinus
d.superior orbital fissure
e.inferior orbital fissure

A

d.superior orbital fissure

31
Q

what does the levator palpebrae superioris attach to

a.sphenoid bone
b.tarsal plate
c.cribiform plate
d.crista galla
e.superior eyeball

A

b.tarsal plate

in upper eyelid
fibrous structure
provides support to eyelid

32
Q

what makes up the triad of horners syndrome

A

ptosis- eyelid drooping
miosis - pupillary constriction
anhidrosis - abscence of sweating

only one side

33
Q

where is the lesion normally found in horners

A

lower cervical upper thoracic spinal cord

34
Q

horners syndrome pathophysiology

A

inhibited sympathetic supply to eye

35
Q

in which type of 3rd nerve palsy is there loss of extra occular movements (in and up lost) so eye shows as down and out before loss signs (pupil constriction)

a.medical
b.surgical

A

a.medical

all eye muscles supplied by cn3 dont work
so lateral rectus (out) and superior oblique ( down and out) left

inside part of cn3 (motor) affected so must be ischaemic cause as blood runs from out to in
inside area loses blood supply first

36
Q

in which type of third nerve palsy presents with pupillary constriction before the classic down and out eye

a.medical
b.surgical

A

b.surgical

parasypmatehtic fibres damaged
found on outside of cn3
common causes - haemorrhage, tumour eg berry aneurysm in circle of wills

Neurology 1 (44 decks)

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