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072

The Eye -Q – Anatomic Terms & A – Meaning

QuestionAnswer
anterior chamber fluid-filled space between the cornea and iris
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)
canal of Schlemm duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
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
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
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)
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
anterior chamber fluid-filled space between the cornea and iris
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)
canal of Schlemm duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
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
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
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)
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
anterior chamber fluid-filled space between the cornea and iris
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)
canal of Schlemm duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
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
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
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)
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
Created by: shachi.pandit