OCAP

Question 1

The anterior 1/6 of the eyeball is the _____________________

Answer 1

cornea

Question 2

The oily layer of the tear flm is produced by the

Answer 2

meibomian gland

Question 3

Vascular layer providing nutrients to the avascular layer of the eye

Answer 3

Middle vascular tunic/choroid

Question 4

The thickened portion of the vascular layer is called

Answer 4

ciliary body

Question 5

the sphincter pupillae muscle causes the pupil tomuscin

Answer 5

constrict

Question 6

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

Answer 6

mucin/mucoid layer

Question 7

T/f

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

Answer 7

false

the bowman’s membrane does not regenerate

Question 8

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

Answer 8

false

7days lang beh

Question 8

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

Answer 8

False

Anteriorly: 7.8mm
Posteriorly: 6.5mm

Question 9

The layer which transmits electrical impulses

Answer 9

Inner nervous tunic - retina

Question 10

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

Answer 10

false

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

Question 11

The structure serving as attachment sites for EOM

Answer 11

sclera

Question 12

Rods and cones are present in the neural layer

Answer 12

true

Question 13

Junction in between the wing cells of the anterior epithelium

Answer 13

Zonula occludens/tight junctions

Question 14

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

Answer 14

False

Vitreous humor

Question 15

The cornea and the sclera are connected by a ring called

Answer 15

limbus

Question 16

forms the posterior 5/6 of the eye

Answer 16

sclera

Question 17

Secretes aqueous humor

Answer 17

ciliary process

Question 18

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

Answer 18

true

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

Question 19

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

Answer 19

False

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

Question 20

The middle layer of the eye is also known as

Answer 20

nutritive layer

Question 21

A vascular diaphragm

Answer 21

iris

Question 22

Hold the lens in place

Answer 22

suspensory ligaments/zonules

Question 23

Responsible for the deturgescence of the cornea

Answer 23

endothelium

Question 24

state of partial dehydration of the cornea

Answer 24

deturgescence

Question 25

T/F Optic disc is also known as yellow spot

Answer 25

FALSE Optic disc is also known as BLIND spot Macula lutea is also known as yellow spot

Question 26

Fovea centralis is located within the

Answer 26

macula lutea

Question 27

receptors involved in scotopic vision

Answer 27

rods

Question 28

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

Answer 28

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

Question 29

the outer plexiform layer contains axodendritic synapses between _____________________ & ________________________

Answer 29

photoreceptor cells; dendrites of bipolar and horizontal cells

Question 30

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

Answer 30

bipolar neurons; ganglion and amacrine cells

Question 31

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

Answer 31

multipolar

Question 32

T/F the outer limiting membrane forms innermost boundary of the retina

Answer 32

FALSE the INNER limiting membrane forms innermost boundary of the retina

Question 33

The pigmented epithelium houses the _______________

Answer 33

photoreceptor cells

Question 34

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

Answer 34

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

Question 35

Ganglion cell layer is absent in the

Answer 35

fovea

Question 36

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

Answer 36

outer plexiform layer

Question 37

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

Answer 37

retinal pigmented epithelium

Question 38

RPE remove debris from photoreceptor cells by

Answer 38

phagocytic action

Question 39

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

Answer 39

amacrine cells

Question 40

Amacrine cell carries information

Answer 40

horizontally

Question 41

area in the retina where keenest vision is observed

Answer 41

fovea

Question 42

blind spot is also known as

Answer 42

optic disc/optic nerve head

Question 43

layer of the retina that contains nuclei of rods and cones

Answer 43

outer nuclear layerla

Question 44

the receptor located at the center of the retina

Answer 44

cones

Question 45

layer of the retina which contains the axons of ganglioms cells

Answer 45

nerve fiber layer

Question 46

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

Answer 46

retina

Question 47

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

Answer 47

ILM NFL GCL IPL INL OPL ONL OLM PCL RPE

Question 48

Photoreceptor located at the periphery of the retina

Answer 48

rods

Question 49

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

Answer 49

disappear

Question 50

90% of aqueous pathway is unconventional outflow

Answer 50

False 90% of aqueous pathway is conventional/trabecular outflow

Question 51

What is the shape of crystalline lens?

Answer 51

biconvex

Question 52

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

Answer 52

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

Question 53

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