review for quiz
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what does the vitreous do? | it gives the eye its shape
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| what is the cornea? | it is the clear dome-shaped tissue in the front of your eye
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| what is the nerve in your eye that sends nerve impulses to your brain? | optic nerve
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| what part of your eye senses color? | cones
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| what part of your eye senses light and dark? | rods
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| what does the iris do? | it controls the amount of light that enters the eye by changing the size of the pupil
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| What are the common names for the three bones in your ear? | stirrup, anvil and hammer
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| what are the latin names for the three bones in your ear? | malleus, incus and stapes
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| what is the visible part of your ear called? | the pinna
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| what is the nerve in your ear that sends nerve impulses to your brain? | auditory nerve
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| what is the spiral-shaped structure in your ear? | cochlea
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| what are the tiny hairs that are lined with the cochlea that cause nerve impulses to form? | cilia
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| what is the lens? | a crystalline structure located behind the iris, it focuses light onto the retina
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| what is the retina? | it lines the back of the eye and and contains the millions of rods and cones
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| what is the eardrum? | also known as the tympanic membrane, it is a thin membrane that vibrates when sound waves reach it
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| 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
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| what is the outer ear canal? | the tube through which sound travels to the eardrum
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| 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
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| what is included in the outer ear? | the pinna, the outer ear canal and the eardrum
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| what is included in the middle ear? | the malleus, the incus and the stapes
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| what is included in the inner ear? | the cochlea and the auditory nerves
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