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Medical Anat.
Eye and Ear
Question | Answer |
---|---|
What are the layers of the eye? | Fibrous tunic(outer layer) Vascular tunic (middle layer) Nervous tunic (inner layer) |
Sclera | white part of the eye.... fibrous tunic... |
Cornea | clear, front part of the eye... bends light... fibrous tunic |
choroid | contains blood vessels.... Vascular tunic... |
Ciliary body | muscle that focus the lens...Vascular tunic... |
iris/pupil | colored part of the eye..Hole in the iris...regulates amount of light entering... vascular tunic |
lens | focuses light...vascular tunic.... |
retina | sensory receptor cell of the eye... nervous tunic... |
rods | detect amount of light( used in dim light and at night).... nervous tunic... |
cones | detect colors...nervous tunic.. |
tinnitus | ringing or clicking of the ear |
cataracts | clouding of the lens...corrected with surgery.... |
Presbyopia | difficulty focusing on close objects... result of aging.. |
myopia | nearsighted |
hyperopia | farsighted |
tympanic membrane | eardrum...sound waves vibrate it.. |