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Eye and ear

review for quiz

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