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Ocular A&P #5 Final

Terms Ocular A& P #5 Final Uvea, Retina. Optic Nerve

TermDefinition
Iris Collarette Thickest part of the iris
Iris Root Thinnest part of the iris
Iris Crypts Depressions on the iris surface
Iris Pigment Epithelium On the posterior iris
Dilator Muscles Causes dilation of the pupil
Peripheral Anterior Synechia Adheres the iris to the cornea
Posterior Synechia Adheres the iris to the lens
Iris Bombe The bowing forward of the iris due to synechia
Iritis Inflammation of the iris
Cyclitis Inflammation of the ciliary body
Persistent Pupillary Membrane Remnant of the hyaloid vessels
Transillumination Red reflex seen through the iris (common with albinos)
Iridodialysis Tear of the iris root
Iris Processes Normal attachments between the iris and the trabecular meshwork
Anisocoria Unequal pupils
Pars Plicata The ciliary processes are located on this
Pars Planae Flat part of the ciliary body
Pars Plicata (produces) Aqueous produced here
Ora Serrata Peripheral end of the ciliary body and the beginning of the retina
Hippus Normal fine contractions of the pupil
Iridotomy Hole in the iris-usually done by laser
Sphincter Muscle Causes the iris to contract
Protein or Fibrin (cause) Flare in the chamber
Cones (4) Color receptors, Mainly in Macula, 4-6 Million, Iodopsin pigment
Rods (4) Nighttime vision, Scotopic vision, 100 Million, Rhodopsin pigment
Anomalous Trichromat One pigment type cone functions below normal
Ishihara Color vision test
Fovea Capillary free zone, Highest concentration of cones
Choriocapillaries Blood nutrition to the outer retina and blood supply to fovea
Central Retinal Artery Blood nutrition to the inner retina
Vortex Veins Choroid is drained by these
Central Retinal Vein Retina is drained by this
Cavernous sinus Venous drainage goes to this
Papillitis Inflammation of the papilla
Papilledema Swelling due to increased intracranial pressure
Neuritis Inflammation of a peripheral nerve or nerves, usually causing pain and loss of function.
Optic Cup Is center of the nerve head and increases with glaucoma damage.
Optic Disc Creates a physiological blind spot
Optic disc rim Thins with glaucoma damage
Ciliary (choroid) circulation Blood supply to the nerve head (disc)
Created by: Leequa
 

 



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