chapter 14 - seeing & hearing

review + terms

palpebra

eyelid

bony cavity of the skull that contains the eyeball

orbit

cillia

eyelashes

transparent anterior portion of the sclera

cornea

mucous membrane that lines the underside of each eyelid

conjunctiva

platelike frame within the upper and lower eyelids

tarsus

iris, ciliary body, and choroid

uvea

narrow duct that leads from the middle ear to the nasopharynx

eustachian tube

ampulla

dilated area in the semicircular canals

otoliths

small stones in the saccule and utricle

osseous chamber at the base of the skull

tympanic bulla

incus

auditory ossicles; anvil

stapes

auditory ossicle; stirrup

malleus

auditory ossicle; hammer

pinna

external portion of the ear

tube that transmits sound from the pinna to the eardrum

external auditory canal

equilibrium

the state of balance

the outer/external ear is separated from the middle ear by the

tympanic membrane

cerumen

earwax

fibrous tissue that maintains the shape of the eye is

sclera - the white of the eye

canthus

corner of the eye

iris

colored muscular layer of the eyes, contains the pupil

nystagmus

involuntary, constant, rhythmic movement of the eyeball 

glaucoma

group of eye disorders resulting from increased intraocular presses

cataract

opacity of the lens

process of the lens bending the light ray to help focus the rays on the retina is called

refraction

fibrous layer of clear tissue that extends over the anterior portion of the eye and is continuous with the white of the eye is the

cornea

region of the eye where nerve endings of the retina gather to form the optic nerve is called the

optic disk

lens

eye structure that is transparent and focuses light on the retina

glaucoma is usually diagnosed by

tonometry

ablation

term for removal of a part

mydriasis

term for pupillary dilation

lacrimation

condition of normal tear production

otoscope

instrument used to visually examine the ear (ear lining, presence of absence discharge, integrity of the tympanic membrane)

spiral-shapes passage that leads from the oval window to the inner ear

cochlea

fovea centralis

area of sharpest vision in the retina

posterior chamber of the eye contains

aqueous humor

acuity

sharpness of vision

the A in AD stands for

auris

the abbreviation OD stands for

right eye

opt/i opt/o

eye

pinn/i, aur/i, aur/o, ot/o

ear