Chapter 07 Key Terms Jeopardy
is a clear, watery fluid that fills the space between the cornea and iris
aqueous humor
produce tears, which constantly moisten and cleanse the eye. The tears flow across the eye and drain through the nasolacrimal duct into the nasal cavity. A mucous membrane, called th
conjunctiva
is a circular structure located behind the pupil and suspended in position by ligaments.
Lens
(bends) light rays so the rays focus on the retina.
Refracts
which acts as the entrance to the two other parts of the inner ear.
Vestibule
Special glands in this canal produce cerumen, a wax that protects
auditory canal
is a circular, transparent part of the front of the sclera.
Cornea
it contains three small bones
Ossicles
The innermost layer of the eye is the
Retina
is the jellylike substance that fills the area behind the lens.
vitreous humor
The outer ear contains the visible part of the ear, called the pinna, or auricle. The pinna is elastic cartilage covered by skin. It leads to a canal, or tube, called theed external auditory meatus, or auditory canal.
Auricle
The middle ear is connected to the pharynx, or throat, by a tube called
eustachian tube
a receptor of sound waves.
organ of corti
The outermost layer is the tough connective tissue called the
Sclera
The cornea is a circular, transparent part of the front of the sclera. It allows light rays to enter the eye. The middle layer of the eye,
choroid coat
is the colored portion of the eye. It is located behind the cornea on the front of the choroid coat.
Iris
The pinna is elastic cartilage covered by skin.
Pinna
are also located in the inner ear. These canals contain a liquid and delicate, hairlike cells that bend when the liquid moves with head and body movements.
semicircular canals
shaped like a snaiľ's shell, contains delicate, hairlike mechanoreceptor cells, which compose the organ of Corti, a receptor of sound waves.
cochlea
in the eye produce tears, which constantly moisten and cleanse the eye.
lacrimal glands
The opening in the center of the iris is called the
Pupil
separates the outer ear from the middle ear. It vibrates when sound waves hit it and transmits the sound waves to the middle ear
tympanic membrane