A & P test 3

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Anonymous
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159181
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A & P test 3
Updated:
2012-06-18 10:40:29
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senses
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Anatomy and Physiology Test 3
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  1. What is the main function of the lens of the eye?
    focus images on the retina
  2. The image on the retina is
    inverted and reversed.
  3. In order for us to see the lens must accomodate both distance and near vision.  It does this by changing shape using ciiliary muscles.  The ciliary muscle ___________ for distance vision and __________ for near vision.
    relaxes, contracts
  4. Rods absorp light and ________ splits into _________ and ___________.
    opsin, retinal
  5. Rods see __________________..
    Black and White
  6. ________ vision is dependent on three kinds of _________
    Color, cones
  7. Color blindnesss is caused by
    inherited absence of color pigments in the cones.
  8. choriod layer _______________________
    regulates the size of the pupil.
  9. The colored portion of the eyes is
    the iris
  10. Three types of cones, ______, ________ and ______
    red, green, blue
  11. _______ a disk where no ______ are present but the greatest concentration of __________.
    rods, cones
  12. The fluid in front of the lens is the
    aqueous humor
  13. Behind the lense is the _________
    vitreous humor
  14. Information from the eye is processed in the _______ of the brain.
    cerebral cortex
  15. Optic nerve carries the signal to the ________
    optic chiasma
  16. Fibers from the optic tracts neurons in the ________.
    thalmus
  17. The ear contains the sense of _______ and ________
    hearing, balance or equilibrium
  18. The receptors in the ear are _________.
    mechanorecepters.
  19. The external ear is called the _____
    auricle or pinna
  20. The role of the auricle is
    collect and funnel information
  21. The _____ separates the external ear from the middle ear.
    tympanic membrane.
  22. three bones of the middle ear  the _____, the ____ and the ______.
    mallus, incas, stapes
  23. The role of the middle ear is to
    amplify the sound collected by the outer ear.
  24. The ____ separates the middle ear from the inner ear
    oval window.
  25. The ______ connects the middle ear to the throat
    eustachian tube
  26. Three areas of the inner ear
    the semicircular canal, vestibules, cochlea
  27. Sense of hearing takes place in the ___________
    cochlea
  28. sense of balance takes place in the ____________ and _____
    vestibules and semicircular canal.
  29. Within the cochlea tiny hairs serve as the mechanorecepter known as the _____
    Organ of Corti
  30. Sense of balance is controled by the _____ located in the ______
    cristae ampularis, semicircular canal.
  31. Sound travels by _________
    vibration of air molecules
  32. tiny hairs that vibrate inside the Organ of Corti that allow us to sense sound are called
    steriocilia
  33. Mechanoreceptors within the semicircular canal are responsible for _________
    rotational equilibrium
  34. Mechanoreceptors within the vestibules are responsible for
    gravitational equilibrium
  35. Cataracts are caused by
    clouding of the lense due to inadequate drainage of aqueous humor.
  36. Age related macular degeneration is caused by
    degeneration of the macula of the eye.  loses the fine tuning of the sense of sight.
  37. Glaucoma is
    increase of intraocular pressure in the eye because of blockage of blood vessels in the eye.
  38. age related hearing decline is called
    Presbycusis
  39. Otosclerosis is
    genetic disorder where the shape of stapes is irregularly
  40. irregularly shaped lens or cornea is called
    astigmatism
  41. Amnosia is
    the inability to smell
  42. ear inflammation caused by infection is called
    Otitis media

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