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A & P

  1. List the three layers of the eye.
    • Outer
    • Middle
    • Inner
  2. State briefly the functions and location of the Sclera.
    • Outer layer of eye.
    • Protection and forms shape of the eye.
  3. State briefly the functions and location of the Cornea.
    • Outer layer of eye.
    • At the center of sclera, tough transparent, first structure that light travels through.
  4. State briefly the functions and location of the Iris.
    • Middle layer of eye.
    • Circular muscle, color of eye and regulates the amount of light entering the eye.
  5. State briefly the functions and location of the Choroid.
    • Middle layer of eye.
    • The blood supply of eye, where the nerves are.
  6. State briefly the functions and locations of the Retina.
    • Inner layer of eye.
    • Made of specialized nerve cells called rods and cones.
  7. State briefly the functions and location of the Optic Nerve.
    • Inner layer of the eye.
    • Carriers electrical impluses to the brain.
  8. Which structure give us most acute vision especially color?
    Macula lutea
  9. Name for the opening in the center of the Iris.
    Pupil
  10. State pupil size in presence of dim light.
    Dim light the pupil is large and dilated.
  11. State the pupil size in presence of bright light.
    Bright light the pupil is small and constricted.
  12. State name of thin membrane (film) which covers the eyeball and protects it.
    Conjuntivas
  13. State function of the lacrimal gland.
    Manufactures tears which help destroy bacteria and viruses that may enter the eye.
  14. Describe the location of the Anterior cavity.
    Extends from Cornea to the Lens.
  15. Describe the location of the Anterior chamber.
    Extends from the Cornea to the Iris.
  16. Describe the location of the Posterior chamber.
    Extends from the Iris to the Lens.
  17. Describe the location of the Posterior cavity.
    Extends from the Lens to the Optic nerve.
  18. State functions of the lens.
    The lens main function is focusing, which is called accommodation.
  19. State the location and function of the Canal of Schlemm.
    • Located at the top and bottom of the cornea.
    • Is the structure that drains the aqueous humor.
  20. Trace the pathway of light traveling into the eye.
    • Cornea
    • Pupil
    • Lens
    • Retina
    • Optic nerve.
  21. State the area of the brain in which vision occurs.
    Occipical lobe
  22. State the meaning of Blephar.
    Eyelid
  23. State the meaning of Ambly.
    Dimness
  24. State the meaning of Presby.
    Aging
  25. In which disease is choroidal hemorrhage so common?
    Diabetes
  26. Describe a cataract.
    The lens becomes opaque and vision diminishes.
  27. Briefly describe macular degeneration.
    • Gradual degeneration of the cones.
    • Progressive, related to aging and no cure.
    • Lost of central vision.
  28. Briefly define papilledema.
    • Accumulation of fluid around the optic nerve the brain.
    • Causes temp. blindness
Author
Anonymous
ID
46384
Card Set
A & P
Description
Anatomy, Physiology and Medical Terminology Eye and Ear Worksheet
Updated

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