Anatomical Organization of Eye Flashcards Preview

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Flashcards in Anatomical Organization of Eye Deck (16)
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1
Q

sclera

A

tough, white tunic on the posterior 5/6 of the eye,

2
Q

cornea

A

transparent layer on the anterior 1/6 of the eye, allows light to enter the eyeball.

3
Q

Uvea

A

middle vascular layer:
choroid
ciliary body
iris

4
Q

ciliary body

A

located between the choroid and the iris, provides attachment for the lens and contain ciliary muscle,

5
Q

iris

A

anterior part) densely pigmented structure with centrally located aperture (pupil), allowing light to get inside the eye

6
Q

Retina

A

– innermost layer

7
Q

visual retina

A

(optic part) – posterior and lateral part, sensitive to visual light,

8
Q

non-visual retina

A

anterior part, covers the internal surface of the ciliary body and the iris.

9
Q

Lens

A

transparent biconvex structure held in position by suspensory ligaments (zonular fibers) which are attached to the ciliary body; helps to refract light to be focused on the retina.

10
Q

Optic disc

A

point where the axons of ganglion cells leave the eye to form the optic nerve (blind spot)

11
Q

Macula lutea

A

yellow spot) – circular portion of the retina located lateral to the optic disc, containing fovea centralis

Yellow color –> high concentration of caratenoids, zeaxanthin

12
Q

Fovea

A

central depression in the macula; area of most acute vision.

13
Q

Anterior

A

between cornea & iris, filled with aqueous humor.

14
Q

Posterior

A

between iris & lens, filled with aqueous humor.

15
Q

Vitreous

A

space behind the lens, the largest chamber, filled with the gelatinous vitreous humor, forming vitreous body, holding the retina and providing support for the lens.

16
Q

Hyaloid canal

A

small transparent canal running through the vitreous body from the optic disc to the lens.