in the eye
opening in the center of iris
Pupil
3 small bones in inner ear
Ossicles
colored portion of the eye
Iris
tube called the external auditory meatus. Produces wax to protect the ear
Auditory canal
outermost layer with tough connective tissue
Sclera
circular structure located behind the pupil and suspended in position by ligaments
Lens
“eardrum”. Separates outer ear from inner ear. Vibrates when sound waves hit and transmits the sound waves to middle ear
Tympanic membrane
jellylike substance that fills the area behind the lens
Vitreous humor
snail shell shape, contains delicate, hairlike mechanoreceptor cells
Cochlea
(bends) light rays so the rays focus on the retina
Refracts
circular, transparent part of the front of the sclera
Cornea
connects the middle ear to pharynx by this tube. Allows air to enter middle ear and helps equalize air pressure on both side of tympanic membrane
Eustachian tube
lines the eyelids and covers the front of the eye to provide additional protection and lubrication
Conjunctiva
acts as entrance to two other parts of the inner ear
Vestibule
1 ounce to ml
29
middle layer of eye, interlaced with many blood vessels that nourish the eyes
Choroid coat
the outer/ visible part of the ear
Auricle
produces tears, which constantly cleanse and moisten the eye
Lacrimal glands
receptor of sound waves
Organ of Corti
9 ounces to ml
266
innermost layer of eye, many layers of nerve cells, transmit light impulses to the optic nerve
Retina
the outer/ visible part of the ear
Pinna
clear, watery fluid that fills the space between the cornea and iris
Aqueous humor
inner ear, contains liquid and delicate, hairlike cells that bend when the liquid moves with head and body movement
Semicircular canals
7 ounces to ml
207