A & P Eye Terms
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| Name the outer layer of the eye. | Sclera
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| Name the inner layer of the eye. | Retina
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| Name the middle layer of the eye. | Choroid
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| What part of the eye is located towards the outside and functions as protection & shape? | Sclera
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| What part of the eye is part of the outer layer & is the first structure light enters? | Cornea
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| What part of the eye is in the middle layer, is made of cirular muscle, and regulates light coming into the eye. | Iris
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| What part of the eye is located at the periphery of the middle layer and contains blood vessels & nerve supply? | Choroid
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| What part of the eye is located at the periphery of the inner layer & determines if we see in color or B & W? | Retina
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| We see in B & W when the lighting is... | dim
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| We see in color when the lighting is ... | regular
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| What runs from the back of the eye to the occipital lope and carries nerve impulses? | Optic nerve
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| Which structure gives us most acute vision? | Muculalutea which is in the center of the fovea centralis.
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| Name of the opening in the center of the iris? | Pupil
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| What is the pupil size in the presence of dim light? | Dilated
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| What is the pupil size in the presence of regular light? | Constricted
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| What is the name of the thin membrane that covers the eye? | Conjunctive
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| What is the fuction of the lacrimal gland? | To produce tears.
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| Where is the Anterior Cavity located? | cornea to the lens
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| Where is the Anterior Chamber located? | cornea to the iris
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| Where is the Posterior chamber located? | iris to the lens
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| Where is the Posterior cavity located? | lens to the optic nerve
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| What fluid is located in the Anterior cavity? | Aqueous Humor
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| What fliud is located in the posterior cavity? | Vitreous Humor
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| What is the function of the lens? | accommodation (Medical term for focus)
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| What is located above and below the iris? | Canal of Schlemm
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| What is the fuction of the Canel of Schlemm? | Drains / exchanges aqueous humor
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| List the order that light travels through the eye. | Cornea, pupil, lens, vitreous humor, retina, optic nerve, occipital lope
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| In what part of the brain does vision occur? | occipital lope
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| What is the 'blind spot'? | Area where the the optic nerve enters the eye; there are no rods or cones / no vision.
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| What is the medical term for the blind spot? | optic disk
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| What is the medical term for focusing? | Accommodation
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| What is the medical term for bending of light? | Refraction
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| What does refraction take place? | In the fluid called vitreous humor.
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| In what cavity is vitreous humor located? | Posterior cavity - It extends from the lens to the optic nerve.
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| What part of the eye contains no blood? | Aqueous humor
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| What controls the shape of the lens? | Ciliary muscle
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| What fliud circulates in the anterior cavity. | Aqueous humor
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| What is the function of the vitreous humor? | Refraction
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| What makes up rods and cones? | Specialized nerve cells for converting light.
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| What vision do we get with rods? | Black & white.
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| What vision do we get with cones? | color
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| In what area do we have our highest concentration of cones? | Fovea centralis
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| What part of the eye gives us our most acute vision? | Muculalutea
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| Where is the muculalutea located? | In the center of the fovea centralis.
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| Rods are made up of a large amount of what chemical? | Rhodopsin
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| What is the result of rhodopsin turning into opsin, a protein, and retinal? | Eletrical impulse from the eye to the optic nerve; also called vision.
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| In what structure are rods and cones located? | Retina
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| What structure is located where the optic nerve and retina merge? | Optic disk
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| What causes the rhodopsin to split into opsin and retinal? | Light
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| Do we have more rods or more cones? | Rods
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| What is the fuction of the aqueous humor? | Removes wastes and circulate nutrients to all structures of the eye.
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| What shape is the lens when you are looking at something far away? | Oblong and thin
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| What shape is the lens when you are looking at something close to you? | Round and thick
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