Anatomy Of Eye

Front 1

three layer of glob

Back 1

1)inner fibrouse layer: cornea
sclera
lamina cribrosa: posterior part of brain where nerve leave the eye
2)middle vascular layer:
iris
ciliary body
choroids
scleral
3)inner nervouse layer
pigment epithelium of retina
retina photoreceptor
retinal neurons

Front 2

glob consist of three chamberso

Back 2

anterior chamber: behind cornea, anterior part of iris and lense
medially by irido-corneal angel
posterior chamber
posterior chamber: posterior part of iris, laterally by sculus-cilaris , posteriorly by ciliary body ciliary fibers and lense
vitreous chamber: between lenses and retina

Hint 2

Front 3

aqeous fluid or humor

Back 3

posterior and anterior chambers are fulfill with it
watery, optically clear solution of water and electrolyte. similar to tissue fluids except that aqeous humor has low protein content normally

Front 4

vitreous humor

Back 4

vitreous chamber fulfill with it
transparent gel
3D network collagen fibers filled by polymerized hyaluronic acid molecules and water

Front 5

blood function in eye

Back 5

in addition to normal fun
intraocular pressure
chroide blood flow represent largest blood flow per unit tissue
heat exchange in retina

Front 6

limbus border

Back 6

the junction between cornea and sclera

Front 7

cornea layers

Back 7

1) epithelium and basement membrane: stratified sqamous type of epithelium with 5-6 cell layer of regular arrangement
2) bowman's layer: homogenous sheets of modified stroma
3) stroma: consist of 90% of total corneal thickness. consist: lamellae of collagen, cells and ground substance
4)descement's membrane: the basement membrane of endothelium
4)endothelium: single layer of cells lining the inner surface of descemet's membrane

Hint 7

Front 8

limbus epithelium

Back 8

thin lips transparent non keratinising mucousae conjunctiva

Front 9

conjunctiva division

Back 9

1) palpebral(tarsal)
2) bulbar
3)fornix

Hint 9

Front 10

what is ciliary body location?

Back 10

anterior to iris,posteriorly to choroid and retina inner side of

Front 11

inner side ciliary body divide to?

Back 11

pars plicata
pars plana

Front 12

choroid consist of the following:

Back 12

1) bruch's membrane
2) the choriocapillaries
3)layer larger chroidal blood vessels
4) pigmented cells scattered in the choroid external to the choriocapillaris

Hint 12

Front 13

where is oraseratta

Back 13

junction of retina and pars plana

Front 14

blood supply of globe is driver from three sources

Back 14

central retinal artrey
anterior ciliary arteries
posterior ciliary artrey

Front 15

visual pathway

Back 15

the retina
axon of the ganglion cells and pupillary reflex pathway
subcritical centers and rely
cortical connection

Front 16

retina pathway:

Back 16

Front 17

axon of ganglion cells

Back 17

Front 18

subcritical center and rely of optical pathway

Back 18

superior colliculus reflex control of move
pretectal nuclei pupillary reflexes
lateral geniculate body cortical rely

Hint 18

Front 19

cortical conn eye path way

Back 19

optic radiations
visual cortex(movement and vision
association areas
frontal eye field_ voluntary eye movements

Front 20

extracellular muscle

Back 20

superior recti
inferior recti
medial recti
lateral recti
superior and inferior oblique

Front 21

function angulus iridocotnealis(chamber angle)?

Back 21

drain eqeous humor

Front 22

chamber angel make from

Back 22

trabeculat meshwork

Front 23

schlemm canal

Back 23

the canal that humor aqeous drain from

Front 24

zonula fiber

Back 24

lenses keep by that

Front 25

which muscle is responsible for eyelid opening?

Back 25

elevator palpebrae superioris supply by 3rd cranial nerve.

Front 26

tear film layers

Back 26

mucoid layer
aqeous layer
oily layer

Hint 26

Front 27

mucoid layer produced by

Back 27

produced by globlet cells

Front 28

where does mucoid layer produced ?

Back 28

conjunctive epithelium

Front 29

aqoues layer produxmced by

Back 29

main lacrimal gland
in the supero temporal part of orbit and accessory lacrimal glands

Hint 29

Front 30

aqeous layer consist

Back 30

electrolyte, proteins, immoglobin,dissolve o2

Front 31

oily layer produced by

Back 31

meibomian glands of eyelids margine

Hint 31

Front 32

oily layer fun

Back 32

maintain vertical column of tears between upper and lower lids and prevent excessive evaporation

Front 33

how tear flow away

Back 33

puncta (inferior and superior)
cancali (inferior and superior)
canaliculus( opening into the lacrimal sac)
nasolacrimal duct( drain to nose)

Hint 33

Front 34

which part of eye contribute to refraction of optical system more

Back 34

cornea

Front 35

cornea features

Back 35

transparency
smoothness
good spherical curvature of proper refractive power
appropriate index of refraction

Front 36

anatomical factors in corneal transparency is contributed by

Back 36

1-absence of keratinisation of epithelium
2-tight packing of epithelial cells
mocouse layers
3-homogeneity of membrane ( bowman's descement's)
4-regular arrangement of corneal lamellae
5- deficit of corneal stromal cells, which are flattened within lamellae
6) interspaces absence of bolld vessels

Front 37

physiological factors

Back 37

active dehydration of cornea through Na+/HCO3- metabolic pump located in the corneal epithelium
dehydration supply by physical barrier provided by corneal epithelium and endothelium prevent swelling