Anatomy of the Eyeball Flashcards
The eyeball contains #? layers
3
Superficial layer of the eyeball
Fibrous
Middle layer of the eyeball
Vascular
Deepest layer of the eyeball
Nervous
Gives structure and strength (layer)
Fibrous layer
Allows light to the inner eye (layer)
Fibrous layer
The fibrous layer consists of ______ and _______
cornea, sclera
Transparant, avascular
cornea
Dense, fibrous white tissue
sclera
Contains blood vessels, nerves, dark tissue (_____ layer)
Choroid, vascular
Back portions of the ______ form the _______ ________ , eye shine and low light vision
choroid, tapedum lucidum
Contains muscles that control the amount of light let into the eye (_____ layer)
Iris, vascular
Opening at the center of the iris (_____ layer)
Pupil, vascular
________ forms the lens (_____ layer)
Cilliary body, vascular
Controls the shape of the sense (_____ layer)
Cilliary muscle, vascular
Transparent layer of fibers, biconvex. Focuses images for the _________ (_____ layer)
Lens, retina, vascular
Lens ________ in shape for far distances and ________ in shape for near vision
flattens, rounds
Deepest layer of the eye containing photoreceptive cells (_____ layer)
Retina, nervous
See dim light
rods
See color
cones
where nerves converge and exit the eye at the ___________
Optic disk, optic nerve
Optic Nerve is CN#?
2
From lens to cornea, contains watery _______ _________. _________ _________produces and recycles
Aqueous cavity, aqueous humor, ciliary body
posterior to the lens, contains gelatinous __________ ________.
Vitreous cavity, vitreous humor
