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NAO Book 1 questions with 100% correct answers
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NAO Book 1 questions with 100% correct answers
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NAO Book 1 questions with 100%correct answers
Reflex tears - correct answer ✔✔Produced by lacrimal glands & are caused by stimulus such as coughing,
sneezing, strong smells & emotions
Layers of tear film (outer-innermost) - correct answer ✔✔Lipid, aqueous, mucin
Tear lake, tear prism, tear meniscus - correct answer ✔✔Collection of the thin film of tears on the lower
lid margin
Ectropia - correct answer ✔✔Eyelids turn outward
Entropion - correct answer ✔✔Eyelids turn inward
Conjunctiva - correct answer ✔✔Mucous membrane lining lids & globe
Goblet cells - correct answer ✔✔produce mucus
Conjunctivitis - correct answer ✔✔inflammation of the conjunctiva
First tunic (outer tunic) - correct answer ✔✔Sclera, cornea, limbus
2nd tunic (middle tunic) - correct answer ✔✔Sclera-retina (iris, ciliary body, choroid)
3rd tunic (inner tunic) - correct answer ✔✔Retina
Outer tunic - correct answer ✔✔Fibrous; receives O2 from tears and blood vessels
, Layers of the cornea (outermost-innermost) - correct answer ✔✔Epithelium, Bowman's layer, stroma,
descements membrane, endothelium
Epithelium - correct answer ✔✔Has 5-7 layers
Bowman's layer - correct answer ✔✔If damaged, scar tissue will form
Endothelium - correct answer ✔✔If deprived of O2, will lost cells quickly & cause swelling
Average power of the cornea - correct answer ✔✔42.00-45.00 diopters
Canal of Schlemm - correct answer ✔✔Encircles the lumbar region; where aqueous drains into the
trabecular meshwork
Middle tunic - correct answer ✔✔vascular
Inner tunic - correct answer ✔✔Light sensitive
Anterior chamber - correct answer ✔✔Back surface of the cornea & the iris
Posterior chamber - correct answer ✔✔Between the iris and crystalline lens
Anisocoria - correct answer ✔✔unequal pupil size
Iritis - correct answer ✔✔inflammation of the iris
Sphincter - correct answer ✔✔Muscle that constricts, causing the pupil to become smaller
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