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AB 4th Year Science/Anatomy > Ophthalmology Anatomy > Flashcards

Ophthalmology Anatomy Flashcards

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1
Q

what ligament holds the eye in place? what else does?

A

suspensory ligament orbital fat

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2
Q

features of a # zygoma? why?

A

diplopia eye drops into socket due to suspensory ligament attachments

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3
Q

cornea reflex ?

A

afferent (sensory) is CN V(1) efferent is CNVII

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4
Q

what is the vestibuloocular reflex?

A

eyes move away from direction of head movement

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5
Q

what is the oculocardiac reflex?

A

bradycardia when there is increased tension on extraocular muslces

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6
Q

parasympathetic affects on the eye?

A

ciliary muscles relax lens becomes thin able to see close up

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7
Q

sympathetic affects on the eye?

A

ciliary muscles contract lens becomes short and fat able to see far away

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8
Q

CNs from midbrain?

A

III IV

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9
Q

CNs from pons?

A

V VI VII VIII

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10
Q

CNs from medulla?

A

IX X XI XII

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11
Q

what does CNIII supply?

A

SR, MR, IR, IO LPS sphincter pupillae

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12
Q

supply of lacrimal gland?

A

lacrimal nerve (branch of CNV1)

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13
Q

Supply of SO and LR?

A

SO - CNIV LR - CNVI

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14
Q

supply of orbicularis oculi?

A

CN VII

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15
Q

what are the components of orbicularis oculi? what do they do?

A

palpebral - blink orbital - close tightly

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16
Q

what produces CSF?

A

choroid plexus

17
Q

layers of the meninges?

A

dura arachnoid pia

18
Q

route of CSF?

A

lateral ventricles 3rd 4th subarachnoid space

19
Q

what do rods do?

A

see in dim light

20
Q

what do cones do?

A

see in normal light

21
Q

what makes up the uvea?

A

iris choroid ciliary body

22
Q

where do the rectus eye muscles originate from?

A

common tendinous ring

23
Q

why do you get painful eye movements in ON?

A

CN III nerve sheet also attaches to common tendinous ring also inflamed

24
Q

blood supply of eye?

A

internal carotid opthalmic artery

25
Q

venous drainage of eye?

A

superior opthalmic vein cavernous sinus

26
Q

what CNs pass through SOF?

A

CN IV, III, VI

27
Q

what passes through the optic canal?

A

optic nerve opthalmic artery

28
Q

what passes through the inferior orbital fissure?

A

opthalmic vein

29
Q

what bones join together at the orbital rim?

A

maxilla zygoma frontal bone

30
Q

what happens in a blowout #?

A

herniation of the orbital contents through one of its wals

31
Q

label

A
32
Q

label

A
33
Q

label

A
34
Q

label

A

AB 4th Year Science/Anatomy (6 decks)

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