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6. tactile receptors are:

  • activated by touch and pressure
  • located behind the lens in the vitreous humor
  • located within the semicircular canals
  • nociceptors

7. which of the following best describes pupillary dilation?

  • mydriasis
  • amblyopia
  • miosis
  • refraction

8. a nociceptor detects

  • radiation
  • pain
  • [H+]
  • light

9. a cataract is a:

  • cloudy lens
  • scarred cornea
  • retinal detachment
  • bulging optic disc

10. which of the following equipment is used to elicit the photopupillary reflex?

  • bell
  • snellen chart
  • penlight
  • hammer

11. which of the following is the best example of referred pain?

  • a person has an abscessed tooth and is complaining of severe pain in the same jaw
  • a person with a history of gallbladder disease eats a high-fat meal. she complains of mid-epigastric pain and pain beneath her right scapula.
  • a footballer pulls a hamstring and must be supported while walking off the field obviously favoring the affected leg
  • a person stubs his right great toe and is observed hopping on his left leg

12. what is the location of the semicircular canals and the cochlea?

  • middle ear
  • outer ear
  • inner ear
  • pharynx

13. what is the name of the tube that connects the pharynx and middle ear?

  • eustachian
  • vestible
  • cochlea
  • oval window

14. rods and cones are:

  • glial cells
  • refracting structures
  • visual receptors
  • visual reflexes

15. the conjuntiva:

  • contains blood vessels that nourish the retina
  • is a mucous membrane
  • covers the cornea
  • secretes aqueous humor

16. Diminished drainage of aqueous humor through the canal of schlemm:

  • elevates intraocular pressure causing glaucoma
  • causes strabimus
  • causes a choked disc or papilledema
  • paralyses the muscles of accomodation

17. which structure separates the out ear from the middle ear?

  • tympanic membrane
  • pinna
  • oval window
  • round window

18. which of the following structures secretes tears?

  • lacrimal gland
  • optic disc
  • canal of Schlemm
  • ciliary body

19. an increase of intraocular pressure is most likely to cause:

  • night blindness
  • macular degeneration
  • damage to the retina, leading to blindness
  • cataracts

20. which of the following is defined as the involuntary rhythmic oscillating movements of the eyes?

  • emmetropia
  • presbyopia
  • nystagmus
  • myopia