Chapter 8.5 Flashcards
The main symptom of Tinnitus is” __________”
Ringing in the ears
You have “_________” on your tongue.
Chemoreceptors
___________ is a caused by a mis-sharpen eyeball.
Astigmatism
The chemical _________ is needed for good night vision.
Visual Purple
The scientific name for the “hammer” bone in the inner ear is the _______.
Malleus
_________ is a chemical that kills bacteria in your eyes.
Lysozyme
The ________ has a high concentration of touch receptors
Forehead
What is the pinnea?
The external part of the ear which is made of cartilage.
Explain what the semicircular canals do in the inner ear.
These loops are organs of balance. The fluid in these canals move when we fall up or down, forward or laterally.
What is the vitreous humor in the eye?
The fluid between the lens and the rear of the eye which is jellylike.
Explain in detail what radical keratotomy “RK” surgery is.
RK surgery is used to correct nearsightedness. It involves making small cuts on the cornea which corrects nearsightedness.
What is the structure that controls the amount of light that enters the eye?
Pupil
What is “persistence of vision”? Give a practical example.
“Persistence of vision” is when an image remains on the retina for 1/10 of a second after the image disappears. An example would be when you watch a movie it is individual frames, but because of our “persistence of vision” it looks like one constant movie.
Explain in detail why you are dizzy after getting off a carnival ride?
In the ear there’s the cochlea. It’s liquid filled and controls hearing. The semicircular canals are filled with fluid and controls balance.
