Vocabulary
Aqueous humor
Clear fluid that fills the anterior chamber of the eye
Dilate
Become wider, larger or more open
Ishihara test
Color blindness test
Orbital cavity
Bony cavity in the skull that houses and protects the eyeball
Rhinitis
Inflammation of the mucous membrane of the nose
Cerumen
Ear wax
Equillibrium
Balance
Malleus
A small bone in the middle ear which transmits vibrations of the eardrum to the incus
Ossicles
Three tiny bones in the middle ear that transmit sounds to the cochlea
Rods
A type of specialized light-sensitive cell in the retina of the eye that provides side vision and the ability to see objects in dim light (night vision)
Cilia
tiny hairs that move mucous and dust particles from the sinuses to the back of the nose
Eustachian tube
Canal that connects the middle ear to the back of the nose and throat
Myringotomy
Surgical opening made in tympanic membrane and tubes placed in ear to drain fluids
Otoscope
A lighted instrument used to examine the ear
Snellen chart
Eye chart that can be used to measure visual acuity
Cones
Cells within the retina that are responsible for color vision and function best in bright light
Glossitis
Inflammation of the tongue
Nasal septum
The bone and cartilage in the nose that separates the nasal cavity into the two nostril
Papillae
Projections on the tongue that contain taste buds
Stapes
Small stirrup-shaped bone that transmits sound vibrations to the oval window of the ear
Constrict
To contract or shrink; become smaller
Incus
A small anvil-shaped bone in the middle ear, transmitting vibrations between the malleus and stapes
Ophthalmoscope
A lighted instrument for inspecting the retina and other parts of the eye
Pinna
External part of the ear; also called the auricle
Stapedectomy
Surgical removal of all or part of the stapes of the middle ear, followed by replacement with a prosthesis