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Test3-Physiology
Neurophysiology Special Senses
| Question | Answer |
|---|---|
| What are the visible light wavelengths? | 400 - 750nm. Practical use would be when buying headlights, some advertise super bright light at 1000 nm, really no good b/c you can only see up to 750nm. |
| Where is the focal plaane for lens/cornea? | Retina |
| What does the key refractory of light and what does more of the fine tuning of light/image? | Cornea does most refractory and lens fine tunes. |
| Changing the curvature of the lens via the ciliary muscles adjust what? | Focal length |
| PresBYopia means what? | decrease accommodation need for BYfocals to help with near vision. |
| I can see things near me, I have nearsightedness, this means the focal plane is near my lens, what is this called? | MYopia |
| If you can see things far away you have farsightedness, and the focal plane is far from lens, what is this called? | Hyperopia |
| if you have no single focal plane b/c of irregularities in the cornea and lens you have what? | Astigmatism |
| Left side of brain receives information from sight in what visual field for both eyes? | Right half of visual field for both eyes |
| We have how many kinds of cones in the retina? | 3 - blue, green and Red |
| What are four structures making up the outer ear? | Auricle, tympanic membrane, TEMPORAL BONE, and External acoustic meatus |
| The receptor type hair cells are large mircrovilli called what and have what kind of gated K channels? | Called Stereocilia and are Mechanically-Gated K channels |
| When Mechanically gated microvilli called sterocilia and bent or moved this causes a depolarization and what is unique about this type of depolarization? | K flows into the cell not Na |
| Where is one of the only places in the body where K flows into the cell and not Na? | Endolymph, K causes depolarization of cell. |
| The middle ear components mechanically do what to sound? | Amplify |
Created by:
cmuox2000
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