The Eye -Q – Anatomic Terms & A – Meaning
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on it to display the answer.
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| anterior chamber | fluid-filled space between the cornea and iris
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| aqueous humor | watery liquid secreted by the ciliary processes that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens (humor = fluid)
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| canal of Schlemm | duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
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| choroid | vascular layer beneath the sclera that provides nourishment to the outer portion of the retina
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| ciliary body | ring of tissue behind the peripheral iris that is composed of ciliary muscle and ciliary processes
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| ciliary muscle | smooth muscle portion of the ciliary body, which contracts to assist in near vision
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| ciliary processes | epithelial tissue folds on the inner surface of the ciliary body that secrete aqueous humor
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| conjunctiva | mucous membrane that lines the eyelids and outer surface of the eyeball
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| cornea | transparent, anterior part of the eyeball covering the iris, pupil, and anterior chamber that functions to refract (bend) light to focus a visual image
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| eyelid | movable, protective fold that opens and closes, covering the eye
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| fovea centralis | pinpoint depression in the center of the macula lutea that is the site of sharpest vision (fovea = pit)
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| fundus | interior surface of the eyeball, including the retina, optic disk, macula, and posterior pole (curvature at the back of the eye) (fundus = base)
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| glands of Zeis | oil glands surrounding the eyelashes
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| meibomian glands | oil glands located along the rim of the eyelids
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| iris | colored circle; colored part of the eye located behind the cornea that contracts and dilates to regulate light passing through the pupil
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| lacrimal gland ( lak′ri-măl gland | gland located in the upper outer region above the eyeball that secretes tears
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| lacrimal ducts | tubes that carry tears to the lacrimal sac
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| lacrimal sac | structure that collects tears before emptying into the nasolacrimal duct
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| lens | transparent structure behind the pupil that bends and focuses light rays on the retina
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| lens capsule | capsule that encloses the lens
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| macula lutea | central region of the retina; responsible for central vision; yellow pigment provides its color (lutea = yellow)
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| nasolacrimal duct | passageway for tears from the lacrimal sac into the nose
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| optic disk , op′tik disk | exit site of retinal nerve fibers as well as entrance point for retinal arteries and exit point for retinal veins
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| optic nerve | nerve responsible for carrying impulses for the sense of sight from the retina to the brain
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| posterior chamber | space between the back of the iris and the front of the vitreous chamber; filled with aqueous humor
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| pupil | black, circular opening in the center of the iris through which light passes as it enters the eye
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| retina | innermost layer that perceives and transmits light to the optic nerve
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| cones | cone-shaped cells within the retina that are color sensitive and respond to bright light
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| rods | rod-shaped cells within the retina that respond to dim light
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| sclera | tough, fibrous, white outer coat extending from the cornea to the optic nerve
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| trabecular meshwork | mesh-like structure in the anterior chamber that filters the aqueous humor as it flows into the canal of Schlemm
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| vitreous | jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye
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| anterior chamber | fluid-filled space between the cornea and iris
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| aqueous humor | watery liquid secreted by the ciliary processes that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens (humor = fluid)
🗑
|
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|
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| canal of Schlemm | duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
🗑
|
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🗑
|
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| choroid | vascular layer beneath the sclera that provides nourishment to the outer portion of the retina
🗑
|
||||
|
🗑
|
|||||
| ciliary body | ring of tissue behind the peripheral iris that is composed of ciliary muscle and ciliary processes
🗑
|
||||
|
🗑
|
|||||
| ciliary muscle | smooth muscle portion of the ciliary body, which contracts to assist in near vision
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
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| ciliary processes | epithelial tissue folds on the inner surface of the ciliary body that secrete aqueous humor
🗑
|
||||
|
🗑
|
|||||
| conjunctiva | mucous membrane that lines the eyelids and outer surface of the eyeball
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
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| cornea | transparent, anterior part of the eyeball covering the iris, pupil, and anterior chamber that functions to refract (bend) light to focus a visual image
🗑
|
||||
|
🗑
|
|||||
| eyelid | movable, protective fold that opens and closes, covering the eye
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| fovea centralis | pinpoint depression in the center of the macula lutea that is the site of sharpest vision (fovea = pit)
🗑
|
||||
|
🗑
|
|||||
| fundus | interior surface of the eyeball, including the retina, optic disk, macula, and posterior pole (curvature at the back of the eye) (fundus = base)
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
| glands of Zeis | oil glands surrounding the eyelashes
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| meibomian glands | oil glands located along the rim of the eyelids
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| iris | colored circle; colored part of the eye located behind the cornea that contracts and dilates to regulate light passing through the pupil
🗑
|
||||
|
🗑
|
|||||
| lacrimal gland ( lak′ri-măl gland | gland located in the upper outer region above the eyeball that secretes tears
🗑
|
||||
| lacrimal ducts | tubes that carry tears to the lacrimal sac
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| lacrimal sac | structure that collects tears before emptying into the nasolacrimal duct
🗑
|
||||
|
🗑
|
|||||
| lens | transparent structure behind the pupil that bends and focuses light rays on the retina
🗑
|
||||
|
🗑
|
|||||
| lens capsule | capsule that encloses the lens
🗑
|
||||
|
🗑
|
|||||
| macula lutea | central region of the retina; responsible for central vision; yellow pigment provides its color (lutea = yellow)
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
|||||
|
🗑
|
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| nasolacrimal duct | passageway for tears from the lacrimal sac into the nose
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| optic disk , op′tik disk | exit site of retinal nerve fibers as well as entrance point for retinal arteries and exit point for retinal veins
🗑
|
||||
| optic nerve | nerve responsible for carrying impulses for the sense of sight from the retina to the brain
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| posterior chamber | space between the back of the iris and the front of the vitreous chamber; filled with aqueous humor
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| pupil | black, circular opening in the center of the iris through which light passes as it enters the eye
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| retina | innermost layer that perceives and transmits light to the optic nerve
🗑
|
||||
| cones | cone-shaped cells within the retina that are color sensitive and respond to bright light
🗑
|
||||
|
🗑
|
|||||
| rods | rod-shaped cells within the retina that respond to dim light
🗑
|
||||
|
🗑
|
|||||
| sclera | tough, fibrous, white outer coat extending from the cornea to the optic nerve
🗑
|
||||
|
🗑
|
|||||
| trabecular meshwork | mesh-like structure in the anterior chamber that filters the aqueous humor as it flows into the canal of Schlemm
🗑
|
||||
|
🗑
|
|||||
|
🗑
|
|||||
| vitreous | jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye
🗑
|
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