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NCLE Prep > Anatomy 2 > Flashcards

Anatomy 2 Flashcards

1
Q

In lids near the junction of the palpebral and bulbar conjunctiva (Fornix)
Near goblet cells that secrete mucous

A

Glands of kraus and wolfring

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2
Q

Secretes tears

A

Lacrimal Gland

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3
Q

Secrete mucin and are found in the lid conjunctiva

A

Goblet Cells

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4
Q

Covers inner surface of the eyelids

A

Palpebral conjunctiva

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5
Q

Covers the anterior parts of sclera, globe to limbus

A

Bulbar Conjunctiva

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6
Q

lines inside of the eyelids and covers the sclera
helps lubricate the eye by producing tears and mucus

A

Conjunctiva

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7
Q

tears(precorneal tearfilm) 3 layers

A

Lipid/ Sebaceous - Fatty
Lacrimal/ Aqueous - Nutrients
Mucin/ Mucoid - Wetting and lubrication

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8
Q

Evaluates tear drainage system function. This test measures the length of time for fluorescein dye to appear inside the nose after being instilled in the cornea.

A

Jones test

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9
Q

how long is palpebral fissure (a lid opening)

A

30mm

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10
Q

…% of refraction takes place in the cornea

A

75

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11
Q

Average corneal thickness

THINNER in center and THICKER in periphery

A

0.53

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12
Q

zone of the cornea, largest in center
Also know as corneal cap

A

Apical zone

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13
Q

Zone of the cornea sized 4-6mm

A

Apical zone

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14
Q

Zone of the cornea between apical zone and the limbus

A

Transition Zone

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15
Q

Zone of the cornea near the periphery

A

Limbal Zone

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16
Q

depression around the cornea and divides the cornea from the sclera.

A

Sulcus

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17
Q

Outermost layer of the cornea that is 5-6 layers thick
Has 3 cell layers Squamous, Wing cell and basal layer

A

Epithelium

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18
Q

2nd outermost layer of the cornea with thin elastic acellular membrane of stromal collagen
Scars if damaged
Cannot be separated from stroma.

A

Bowman’s membrane

19
Q

Middlemost layer of the cornea
makes up 90% of total corneal thickness.
Scars if damaged

A

Stroma

20
Q

2nd innermost layer of cornea
Elastic membrane secreted by the endothelium
will reform if damaged

A

Descemet’s membrane

21
Q

innermost layer of cornea
hexagonal

A

endothelium

22
Q

disorder connected to endothelium that causes variation in cell size

A

Polymegethsim

23
Q

disorder connected to endothelium that causes variation in cell shape

A

Polymorphism

24
Q

disorder connected to endothelium that causes deposits on the endothelium indicating endothelial dysfunction

A

Endothelial Guttata

25
Q

is formed when glucose breaks down in to the nucleus of the cells creating a pumping action, therefor maintains the proper water balance in the cornea.

A

ATP

26
Q

Swelling of the corneal tissue and results when forces normally dehydrating the cornea are overcome by forces driving water into the cornea

A

Edema

27
Q

Three instruments used to look at corneal edema

A
  1. Pachometer
  2. Keratometer
  3. Slit Lamp
28
Q

Swelling of the epithelial cells, it is a reversible form of edema

A

Gross edema

29
Q

Non-reversible edema that involves cell death at the epithelium
Caused by over wearing syndrome causes photophobia

A

microcystic edema

30
Q

This provides oxygen and glucose to the cornea and lens

A

Aqueous humor

31
Q

What filters the light and UV rays due to pigmentation?

A

Iris

32
Q

What controls light by dilating and constricting the pupil?

A

Iris

33
Q

The average adult pupil size is ______________.

A

3-4mm

34
Q

The _________ is the posterior portion of the uveal tract.

A

Choroid

35
Q

The ___________ is composed of blood vessels and lies between the sclera and the retina.

A

Choroid

36
Q

The __________________ provides blood supply for the outer cells of the retina.

A

Choroid

37
Q

The _____________ is located immediately behind the iris and is a clear membrane like structure that is quite elastic.

A

Crystalline lens

38
Q

The ______________________ is a band like structure that encircles the inside of the eye from the iris root to the anterior edge of the retina attached to the ora serrata.

A

ciliary muscle

39
Q

What muscle aids in the accommodation process?

A

Ciliary muscles

40
Q

What muscle aids in the accommodation process?

A

Ciliary muscles

41
Q

The __________________ is the innermost layer of the eye

A

Retina

42
Q

The ________ converts light entering the eye via nerve impulses.

A

Retina

43
Q

may cause dry eye

A

alcohol, diabetes, arthritis HIV, General medications that may cause dry eye

44
Q

This is a blocked Zeiss gland

A

hordeolum

NCLE Prep (26 decks)

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