Ch. 7.7 Special Senses Key Terms
This clear, watery fluid fills the front chamber of the eye and nourishes the cornea and lens.
What is the aqueous humor?
This thin membrane lines the eyelids and covers the front of the sclera.
What is the conjunctiva?
This flexible, clear structure changes shape to focus light onto the retina.
What is the lens?
This term means to bend light as it enters the eye.
What is refract?
This central part of the inner ear contains receptors for balance and connects to the semicircular canals.
What is the vestibule?
This tube carries sound waves from the outer ear to the eardrum.
What is the auditory canal?
This clear, curved front part of the eye bends incoming light.
What is the cornea?
This hearing structure inside the cochlea contains the hair cells that detect sound.
What is the Organ of Corti?
This light-sensitive inner layer of the eye contains rods and cones.
What is the retina?
This gel-like substance fills the space behind the lens and helps maintain the eyeball’s shape.
What is vitreous humor?
This external part of the ear collects sound waves and is also called the pinna.
What is the auricle?
This tube equalizes pressure between the middle ear and the throat.
What is the eustachian tube?
These three tiny bones in the middle ear amplify sound vibrations.
What are the ossicles?
This tough, white outer layer of the eye provides protection and structure.
What is the sclera?
This middle, vascular layer of the eye lies between the sclera and retina.
What is the choroid coat?
This colored part of the eye controls the size of the pupil.
What is the iris?
Another name for the auricle, the visible outer part of the ear.
What is the pinna?
These three fluid-filled structures in the inner ear help maintain balance.
What are the semicircular canals?
This snail-shaped inner-ear structure contains the receptors for hearing.
What is the cochlea?
These glands located above the eye produce tears.
What are the lacrimal glands?
This opening in the iris allows light to enter the eye.
What is the pupil?
This membrane vibrates when sound waves strike it.
What is the tympanic membrane?