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Anatomy of the eye > Eye Anatomy > Flashcards

Eye Anatomy Flashcards

1
Q

Extraocular

A

means out side of the eye

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2
Q

Intraocular

A

means within the eye

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3
Q

Choroid

A

opaque middle layer, contains many blood vessels provides the blood supply for the entire eye. Most reflective surface

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4
Q

Sclera

A

White of the eye. Delicate layer. Maintain the the shape of the eye. covered by conjunctiva.

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5
Q

Retina

A

Sensitive innermost layer lines posterior segment of the eye. Receives never impulses and transmits them to the brain.

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6
Q

Ocular Adnexa

A

Orbit, eye muscles, eyelids, eyelashes, conjunctiva and lacrimal apparatus.

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7
Q

6 eye muscles

A

Lateral rectus, medial rectus, superior oblique, Inferior oblique, superior rectus and inferior rectus.

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8
Q

Lateral rectus

A

moves in lateral direction, pulled away from the nose

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9
Q

medial rectus,

A

moves eye toward the nose horizontally

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10
Q

superior oblique

A

moves eye downward and away from the nose. Medial rotation

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11
Q

Inferior oblique

A

moves the eye upward and towards the nose. Lateral rotation

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12
Q

superior rectus

A

attached at the top of the eye and It moves the eye upwards

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13
Q

inferior rectus

A

It moves the eye downward. Muscle attached at the bottom of the eye.

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14
Q

Lacrimal Gland

A

secrete tears

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15
Q

lacrimal sac

A

enlargement of the upper portion of the lacrimal duct

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16
Q

lacrimal duct

A

the passageway that drains excess tears into the nose

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17
Q

Crystalline lens

A

is clear, flexible, curved structure that focuses images on the retina

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18
Q

Epithelium

A

To block foreign object from entering the eye. Absorbs nutrient for the cornea

19
Q

Bowman’s layer

A

Function is still unknown. Can’t guarantee vision when healing. Contains collagen.

20
Q

Stroma

A

the thickest layer. Contains collagen and water (78%). Maintained my crystalline protein

21
Q

Descemet’s Membrane

A

Can regenerate. Barrier against infection and Injury.

22
Q

Endothelium

A

last layer doesn’t regenerate. Pumps excessive fluid.

23
Q

Esotropia

A

horizontally move inward towards the nose

24
Q

Exotropia

A

horizontally moves outward away from the nose

25
Q

Hypertropia

A

vertically move upward

26
Q

Hypotropia

A

vertically one eye moves downward

27
Q

Diplopia

A

also known as double vision. Perception of 2 images of a single object

28
Q

Outline the flow of Aqueous Humor

A

This fluid is constantly filtered starting from the posterior chamber through the pupil to the anterior chamber exiting the inner through the trabecular meshwork which consist of tiny pores until it reaches the Schlemm’s canal. From there it drains out of the eye through the aqueous veins and enters the sclera.

29
Q

Puncta

A

Act like little valances to take tears out of the eye

30
Q

Vitreous humor

A

This is a soft, clear, jelly like mass that contains millions of fine fibres. These fibers, which are attached to the surface of the retina, help the eye maintain its shape

31
Q

Rods and cones

A

The rods and cones of the retina receive images that have passed through the lens of the eye. These images are converted into nerve impulses and transmitted to the brain

32
Q

Macula

A

Is a clearly defined yellow area in the centre of the retina. This is the area of sharpest central vision

33
Q

fovea centralis

A

Is a pit in the middle of the macula. Colour vision is the best in this area because It contains a high concentration of cones

34
Q

Optic disc

A

Also known as a blind spot, is a small region in the eye with a nerve endings of the retina enter the optic nerve.

35
Q

Optic nerve

A

Transmits these nerve impulses from the retina to the brain

36
Q

Uveal Tract

A

Is the pigmented layer of the eye. It has rich blood supply in consist of the choroid, ciliary body, and the iris

37
Q

Aqueous chamber

A

Located behind the cornea and in front of the iris

38
Q

Ciliary body

A

Located in the choroid, is a set of muscles and suspensory ligaments that adjust the thickness of the lens to refines the focus of light in the retina

39
Q

Accommodation

A

The process whereby the eye makes adjustments for seeing objects at various distances

40
Q

Refraction

A

Is the ability of the lens to bend light rays so they focus on the retina

41
Q

What is ocular mobility?

A

To see how eye muscles work together in various direction and gaze (12 muscles rectus and oblique)

42
Q

What is the meaning of coming word Blephar/o

A

Eyelid

43
Q

Some ophthalmic solutions may lose their potency if not stored properly

A

Ture

44
Q

What is the meaning of ocul/o

A

eye

Anatomy of the eye (2 decks)

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