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Battery Exam > OCAP > Flashcards

OCAP Flashcards

1
Q

The anterior 1/6 of the eyeball is the _____________________

A

cornea

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2
Q

The oily layer of the tear flm is produced by the

A

meibomian gland

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3
Q

Vascular layer providing nutrients to the avascular layer of the eye

A

Middle vascular tunic/choroid

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4
Q

The thickened portion of the vascular layer is called

A

ciliary body

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5
Q

the sphincter pupillae muscle causes the pupil tomuscin

A

constrict

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6
Q

What layer of the tear film is the thinnest and the innermost?

A

mucin/mucoid layer

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7
Q

T/f

The bowman’s membrane is resistant to trauma thus can regenerate once destroyed

A

false

the bowman’s membrane does not regenerate

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8
Q

Anterior epithelium of the cornea regenerate every 14 days to prevent scar formation

A

false

7days lang beh

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8
Q

T/F
The radius of curvature of the central cornea is 7.8mm posteriorly

A

False

Anteriorly: 7.8mm
Posteriorly: 6.5mm

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9
Q

The layer which transmits electrical impulses

A

Inner nervous tunic - retina

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10
Q

T/F
the corneal stroma is composed of type IV collagen fibers

A

false

The corneal stroma is composed of lamellae of collagen fibrils arranged in a regular lattice (type I, III, V, VI)

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11
Q

The structure serving as attachment sites for EOM

A

sclera

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12
Q

Rods and cones are present in the neural layer

A

true

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13
Q

Junction in between the wing cells of the anterior epithelium

A

Zonula occludens/tight junctions

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14
Q

T/F
The jelly like fluid inside the posterior cavity of the eye is called the aqueous humor

A

False

Vitreous humor

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15
Q

The cornea and the sclera are connected by a ring called

A

limbus

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16
Q

forms the posterior 5/6 of the eye

A

sclera

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17
Q

Secretes aqueous humor

A

ciliary process

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18
Q

T/F
Bruch’s membrane is the innermost layer of the choroid

A

true

also known as lamina vitrea, lamina elastica, basal lamina, lamina basalis choroideae

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19
Q

T/F
A prolate shaped cornea has a steeper curvature at the periphery

A

False

A prolate shaped cornea has a steeper curvature at the center, flatter at the periphery

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20
Q

The middle layer of the eye is also known as

A

nutritive layer

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21
Q

A vascular diaphragm

A

iris

22
Q

Hold the lens in place

A

suspensory ligaments/zonules

23
Q

Responsible for the deturgescence of the cornea

A

endothelium

24
Q

state of partial dehydration of the cornea

A

deturgescence

25
Q

T/F

Optic disc is also known as yellow spot

A

FALSE

Optic disc is also known as BLIND spot

Macula lutea is also known as yellow spot

26
Q

Fovea centralis is located within the

A

macula lutea

27
Q

receptors involved in scotopic vision

A

rods

28
Q

T/F
the outer plexiform layer that contains axodendritic synapses between axons of bipolar neurons and dendrites of ganglion and amacrine cells

A

false
the inner plexiform layer contains axodendritic synapses between axons of bipolar neurons and dendrites of ganglion and amacrine cells

the outer plexiform layer contains axodendritic synapses between photoreceptor cells & dendrites of bipolar and horizontal cells

29
Q

the outer plexiform layer contains axodendritic synapses between _____________________ & ________________________

A

photoreceptor cells; dendrites of bipolar and horizontal cells

30
Q

the inner plexiform layer contains axodendritic synapses between axons of ______________ and dendrites of ___________________-

A

bipolar neurons; ganglion and amacrine cells

31
Q

The ganglion layer contains cell bodies of large _____________ neurons of the ganglion cells

A

multipolar

32
Q

T/F

the outer limiting membrane forms innermost boundary of the retina

A

FALSE

the INNER limiting membrane forms innermost boundary of the retina

33
Q

The pigmented epithelium houses the _______________

A

photoreceptor cells

34
Q

T/F

bipolar cell is considered as the 1st order neuron in the visual pathway

A

F

bipolar cell is considered as the 2ND order neuron in the visual pathway, photoreceptor cell is considered as the 1st

35
Q

Ganglion cell layer is absent in the

A

fovea

36
Q

Form synapses between rod and cones, horizontal cells and dendrites of bipolar cells

A

outer plexiform layer

37
Q

this layer of the retina removes tdebris from photoreceptor cells by phagocytic action

A

retinal pigmented epithelium

38
Q

RPE remove debris from photoreceptor cells by

A

phagocytic action

39
Q

this cell form synapses between the axons of bipolar cells and dendrites of ganglion cells

A

amacrine cells

40
Q

Amacrine cell carries information

A

horizontally

41
Q

area in the retina where keenest vision is observed

A

fovea

42
Q

blind spot is also known as

A

optic disc/optic nerve head

43
Q

layer of the retina that contains nuclei of rods and cones

A

outer nuclear layerla

44
Q

the receptor located at the center of the retina

A

cones

45
Q

layer of the retina which contains the axons of ganglioms cells

A

nerve fiber layer

46
Q

a specific structure in the eye which is an extension of the brain

A

retina

47
Q

Arrange in order the layers of the retina freom inner to outer

A

ILM
NFL
GCL
IPL
INL
OPL
ONL
OLM
PCL
RPE

48
Q

Photoreceptor located at the periphery of the retina

A

rods

49
Q

In the test for blind, when you look at the cross target with your left eye, the dot/circle ______________-

A

disappear

50
Q

90% of aqueous pathway is unconventional outflow

A

False

90% of aqueous pathway is conventional/trabecular outflow

51
Q

What is the shape of crystalline lens?

A

biconvex

52
Q

T/F
the vitreous humor replaces the lymph that is absent in the eye

A

false

the aqueous humor replaces the lymph that is absent in the eye

53
Q

The aqueous humor is found in the posterior sement of the eye

A

Battery Exam (4 decks)

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