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18 Cards in this Set
- Front
- Back
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The sensory perceptions are those of
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seeing, hearing, tasting, smelling, and touching, sense of equilibrium
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+97+7
ophthalm |
eye
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blephar
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eyelid
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palpebra
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eyelid
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the transparent mucous membrane lining covering
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conjuctiva
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why is the eye heavily supplied ith blood vessels and nerve endings?
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to nourish the eye and to alert us to foreign objects that could do damage
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The ______________ which produce tears, keep t,he eye's surface moist and lubricated (
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lacrimal glands
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the body produces _________ of lacrimal fluid each day
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about 1 mL
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Tears drain out through a small opening, called the______________; , drains these tears into the nose
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nasolacrimal duct
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Tears protect the eyes from
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infections and foreign objects
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Chemical and mechanical irritants ( onions or dust) cause ______________ by the lacrimal glands in order to wash the irritants away.
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oversecretion
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Humans are the only species that form tears in response ___________
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to emotions.
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5 things that protect our eyes
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bony socket, eyelids, eyelashes, eyebrows, and tears
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The eyeball is a hollow sphere that consists of three layers of tissue:
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sclera and cornea,
choroid layer, and retina. |
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The ________ is the first structure through which light rays pass on its way to the retina and It influences visual acuity.
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cornea
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can be transplanted and were actually the first transplant done
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corneas
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The middle layer_________, , is vascular and brings oxygen and nutrients to the eyes.
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the choroid
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The choroid extends to the__________ , which contains muscles that adjust the shape and thickness of the lens.
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ciliary body
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