Eye And Ear Flashcards
Sensory Adaptation
A decrease in responsiveness to continued stimulation. Ex. Boiling frog
Where eye Action Potential goes
Through optic nerve to occipital lobe
Retina
Back of eye where photoreceptors are
Cornea
White first layer of eye
Lens
Clear rocky thing held in place by ciliary muscle
Ciliary muscle
Muscle that holds lens in place
Aqueous humour
Medium in between Pupil and cornea. Is more liquidy
Vitreous humour
Medium of rest of eye. Jello-y
Fovea centralis
Where most of cones are most concentrated
Sclera
Cornea bit but at the back
Choriod
Blood vessel layer for nourishment
Hyperopia
Farsightedness
Eye is too long, image goes behind back or retina.
Need convex lens
Myopia
Nearsightedness.
Eye too short, image goes in front of retina.
Need concave lens
Astigmatism
Deterioration of lens (irregularly shaped), causes many docs point.
Needs specialized lens
What does sound travel fastest through?
Solids