Ch. 7.7 Special Senses Key Terms
what is aqueous humor
is a clear, watery fluid that fills the space between the cornea and iris.
what is Conjunctival
lines the eyelid and covers the front of the eye to provide additional protection and lubrication
what is lens
is a circular structure located behind the pupil and suspended in positions by ligaments
what is Refracts
(bends) light rays so the rays focus on the retina
what is . Vestibule
which acts as the entrance to the two other parts of the inner ear
what is auditory canal
special glands in this canal produce, cerumen, a wax
what is cornea
is a circular, transparent part of the sclera
what is organ of corti
a receptor of sound waves to auditory nerve
what is Retina
it is made of many layers of the eye is in the retina
what is vitreous humor
is the jelly likes substance the fills the area behind the lens
what is Auricle
the outer ear contains the visible part of the ear
what is eustachian tube
allows air to enter the middle ear and helps equalize air pressure
what is Ossicles
the malleus, the incus and the stapes
what is Sclera
maintains the shape of the eye
what is choroid coat
is interlaced with many blood vessels that nourish the eyes.
what is iris
is a colored portion of the eye.
what is pinna
is an elastic cartilage covered by skin
what is semicircular canals
are also located in the inner ear
what is Cochlea
the spiral cavity of the inner ear containing the organ of Corti, which produces nerve impulses in response to sound vibrations.
what is lacrimal gland
in the eye produce tears, which constantly moisten and cleanse the eye
what is pupil
regulates the amount of light entering the eye
what is tympanic membrane
the tympanic membrane separates the outer ear from the middle ear