Ch. 7.7 Special Senses Key Terms
bends
Refracts
canal or tube
auditory canal
elastic cartilage
Auricle
middle layer of the eye
choroid coat
Lacrimal glands
separates the outer ear from the middle ear
tympanic membrane
lines the eyelids and covers the front of the eye for protection
conjuctiva
connects the middle ear to the throat
eustachian tube
semicircular canals
innermost layer of the eye
Retina
circular structure located behind the pupil
Lens
transmits the impulses from oundwaves to the auditory nerve
organ of corti
middle ear is a small space or cavity in the temporal bone
Ossicles
elastic cartilage covered by skin
Pinna
opening in the center of the iris
Pupil
contains delicate hair-like mechanoreceptor cells
cochlea
the jellylike substance that fills the area behind the lens
vitreous humor
is the colored portion of the eye
Iris
a circular, transparent part of the front of the sclera
cornea
acts as the entrance ot the two other parts of the iner ear
Vestibule
is a clear watery fluid that fills the space between the cornea and iris
aqueous humor
tough connective tissue on the outermost layer
Sclera