Eye: Anatomical Terms

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Eye: Anatomical Terms
2011-07-11 13:20:20
medterm ch12 quiz6

Quiz 6
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  1. anterior chamber
    fluid-filled space betwen the cornea and iris
  2. aqueous humor
    watery liquid secreted at the ciliary body that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens
  3. canal of Schlemm
    duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream
  4. choroid
    vascular layer beneath the sclera that provides nourishment to the outer portion of the retina
  5. ciliary body
    ring of muscle behind the peripheral iris that controls the power of the lens
  6. ciliary muscle
    smooth muscle portion of the ciliary body, which contracts to assist in near-vision capability
  7. ciliary processes
    epithelial tissue folds on the inner surface of the ciliary body that secrete aqueous humor
  8. conjunctiva
    joining together; mucous membrane that lines the eyelids and outer surface of the eyeball
  9. 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
  10. eyelid (palpebra)
    moveable protective fold that opens and closes, covering the eye
  11. fovea centralis
    pinpoint depression in the center of the macula lutea that is the site of sharpest vision
  12. fundus (base)
    interior surface of the eyeball including the retina, optic disk, macula and posterior pole (curvature at the back of the eye)
  13. glands of Zeis
    oil glands surrounding the eyelashes
  14. meibomian glands
    oil glands located along the rim of the eyelids
  15. iris
    colored circle; colored part of the eye located behind the cornea that contracts and dilates to regulate light passing through the pupil
  16. lacrimal gland
    gland located in the upper outer region above the eyeball that secretes tears
  17. lacrimal ducts
    tubes that carry tears to the lacrimal sac
  18. lacrimal sac
    structure that collects tears before emptying into the nasolacrimal duct
  19. lens
    transparent structure behind the pupil that bends and focuses light rays on the retina
  20. lens capsule
    capsule that encloses the lens
  21. macula lutea (macula)
    central region of the retina responsible for central vision; yellow pigment provides its color
  22. nasolacrimal duct
    passageway for tears from the lacrimal sac into the nose
  23. optic disk
    exit site of retinal nerve fibers, as well as the entrance point for retinal arteries and the exit point for retinal veins
  24. optic nerve
    nerve responsible for carrying impulses for the senses of sight from the retina to the brain
  25. posterior chamber
    space between the back of the iris and the front of the vitreous filled with aqueous fluid
  26. pupil
    black circular opening in the center of the iris through which light passes as it enters the eye
  27. retina
    innermost layer that perceives and transmits light to the optic nerve; made of cones and rods
  28. cones
    cone-shaped cells within the retina that are color sensitive and respond to bright light
  29. rods
    rod-shaped cells within the retina that respond to dim light
  30. sclera
    tough, fibrous, white outer coat extending from the cornea to the optic nerve
  31. trabecular meshwork
    mesh-like structure in the anterior chamber that filters the aqueous humor as it flows into the canal of Schlemm
  32. vitreous
    jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye