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Ocular > Anatomical features of eye > Flashcards

Anatomical features of eye Flashcards

1
Q

Tunics of the eye

A

Outer
Middle
Inner

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2
Q

Parts of the outer tunic

A

cornea

sclera

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3
Q

Parts of the middle tunic

A

iris
ciliary body
choroid

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4
Q

Parts of the inner tunic

A

retina

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5
Q

Function of the outer tunic

A

protection and shape

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6
Q

Function of the middle tunic

A

Iris - controls how much light enters
Ciliary body - produces parts of aqueous humor
choroid - dense network of blood vessels

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7
Q

Other names for middle tunic

A

Vascular tunic or uvea

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8
Q

Function of inner tunic

A

change light into signal that can be carried to optic nerve

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9
Q

Categorize the three layers of the eye

A

Outer: fibrous
Uvea: vascular
Retina: neural

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10
Q

Features of the sclera

A

Provides framework

Impenetrable to light

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11
Q

Features of cornea

A

Transparent

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12
Q

Why is metabolism important to maintain a healthy cornea?

A

There are no blood vessels in the cornea to maintain its transparency

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13
Q

Features of the iris

A

Regulates amount of light that can enter

Autonomic control

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14
Q

Features of the ciliary body

A

Produces aqueous humor that circulates

Controls shape of crystalline lens

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15
Q

What is accomodation?

A

Changing the shape of the lens to view objects at different distances

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16
Q

What is the purpose of the optic nerve?

A

Carry information from retina to brain

17
Q

What is the purpose of the crystalline lens?

A

Focus light onto the retina

18
Q

What is the purpose of the extraocular muscles?

A

Move the eyes

19
Q

What is binocular vision?

A

Two eyes with overlapping fields of view

20
Q

What are three parts of the ocular adnexa?

A

Conjunctiva
Eye lids
Tear films

21
Q

Chambers of the globe

A

Anterior chamber
Posterior chamber
Vitreous chamber

22
Q

Where is the anterior chamber?

A

Between cornea and iris/anterior lens

23
Q

Where is the posterior chamber?

A

Posterior iris to equatorial lens

24
Q

Where is the vitreous chamber?

A

Lens to retina

Ocular (1 decks)

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