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Eye and ear
review for quiz
| Question | Answer |
|---|---|
| what does the vitreous do? | it gives the eye its shape |
| what is the cornea? | it is the clear dome-shaped tissue in the front of your eye |
| what is the nerve in your eye that sends nerve impulses to your brain? | optic nerve |
| what part of your eye senses color? | cones |
| what part of your eye senses light and dark? | rods |
| what does the iris do? | it controls the amount of light that enters the eye by changing the size of the pupil |
| What are the common names for the three bones in your ear? | stirrup, anvil and hammer |
| what are the latin names for the three bones in your ear? | malleus, incus and stapes |
| what is the visible part of your ear called? | the pinna |
| what is the nerve in your ear that sends nerve impulses to your brain? | auditory nerve |
| what is the spiral-shaped structure in your ear? | cochlea |
| what are the tiny hairs that are lined with the cochlea that cause nerve impulses to form? | cilia |
| what is the lens? | a crystalline structure located behind the iris, it focuses light onto the retina |
| what is the retina? | it lines the back of the eye and and contains the millions of rods and cones |
| what is the eardrum? | also known as the tympanic membrane, it is a thin membrane that vibrates when sound waves reach it |
| what is the Eustachian tube? | it connects the middle ear to the back of the nose, it equalizes the pressure between the middle ear and the outside air |
| what is the outer ear canal? | the tube through which sound travels to the eardrum |
| what are the semicircular canals | three loops of fluid-filled tubes that are attached to the cochlea in the ear. they help us maintain our balance |
| what is included in the outer ear? | the pinna, the outer ear canal and the eardrum |
| what is included in the middle ear? | the malleus, the incus and the stapes |
| what is included in the inner ear? | the cochlea and the auditory nerves |
Created by:
gmsscience
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