Eyes and Ears Flashcards
accommodation
normal adjustment of the eye to focus on objects from far to near f
anterior chamber
area behind cornea and in front of the lens and iris
aqueous humor
fluid produced by the ciliary body and found in the anterior chamber
biconvex
the lens of the eye is a biconvex body. It has two rounded, elevated surfaces
choroid
middle vascular layer of the eye
cone
light receptor responsible for colour and central vision
conjunctiva
membrane covering the eyeball
cornea
fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball
fovea centralis
tiny pit or depression in the retina
fundus of the eye
posterior inner part of the eye
iris
pigmented portion of the eye
lens
transparent biconvex body behind the pupil of the eye
macula
small oval region on the retina near the optic disc
optic chiasm
point at which the optic nerve fibers cross in the brain
optic disc
region at the back of the eye where the optic nerve meets the retina
optic nerve
cranial nerve carrying impulses from the retina to the brain
pupil
central opening of the eye
refraction
bending of light rays (takes most of your eye)
retina
light sensitive part of the eye containing photoreceptor nerve cells
rod
photoreceptor cell responsible for dim light and peripheral vision
sclera
tough, white outer coat of the eyeball
thalamus
relay center in the brain where the optic nerve fibers pass through
vitreous humor
soft jelly like material behind the lens in the vitreous chamber
aque / o
water
blephar /o
eye lid
conjunctiv / o
conjunctiva
cor / o
pupil
corne / o
cornea
cycl / o
ciliary body or muscle of the eye
dacry / o
tears or tear duct
ir / o, irid / o
iris
kerat / o
cornea
lacrim / o
tears
ocul / o
eye
opt / o, optic / o
eye, vision
palpebr / o
eyelid
papill / o
optic disc, nipple like
phac / o, phak / o
lens of the eye
pupill / o
pupil
retin / o
retina
scler / o
sclera
uve / o
uvea , vascular layer of the eye
vitre / o
glassy
ambly / o
dull or dim
dipl / o
double
glauc / o
grey
mi / o
smaller or less
mydr / o
widen or enlarge
nyct / o
night
phot / o
light
presby / o
old age
scot / o
darkness
xer / o
dry
-opia
vision
-opsia
vision
-trophia
to turn
astigmatism
defective curvature of the cornea or the lens of the eye
hypertropia
farsightedness
myopia
nearsightedness
presbyopia
Impairment of vision as a result of old age
cataract
clouding of the lens, decreased vision
chalazion
small, hard, cystic mass (granuloma) of the eyelid
diabetic retinopathy
disease of the retina caused by diabetes mellitus
glaucoma
increased intraocular pressure results in damage to the retina and optic nerve with loss of vision
trabecul / o
small beam, rod or plank of wood
hordeolum
localized, purulent, inflammatory staphylococcal infection of a sebaceous oil producing gland in the eyelid
macular degeneration
progressive damage to the macula of the retina
nystagmus
repetitive movements of one or both eyes
retinal detachment
two layer of the retina separate form each other
strabismus
abnormal deviation of the eye
enucleation
removal of the entire eyeball
AMD
age-related macular degeneration
OU
both eyes
VA
visual acuity
VF
visual field
auditory canal
channel that leads from pinna to eardrum
auditory meatus
auditory canal
auditory nerve fibers
carry impulses from inner ear to brain
auditory tube
channel between middle ear and nasopharynx: eustachian tube
auricle
the protruding part of the external ear
cerumen
earwax
cochlea
spirally or snail shaped tube in the inner ear
endolymph
fluid within the labyrinth of the inner ear
eustachian tube
auditory tube
incus
second ossicle (small bone) of the middle ear. Incus means anvil
labyrinth
maze like series of canals of the inner ear
malleus
first ossicle of the middle ear. malleus means hammer
organ of Corti
auditory receptor found in cochlea
ossicle
small bone of the ear
oval window
membrane between middle and inner ear
perilymph
fluid contained in the labyrinth
pinna
auricle, flap of the ear
semi circular canals
passages of the inner ear associated with maintaining equilibrium
stapes
third ossicle, means stirrup
tympanic membrane
eardrum
vestibule
central cavity of the labyrinth
acous /o
hearing
audi / o
hearing
audit / o
hearing
aur / o, auricul / o
ear
cochle / o
cochlea
mastoid / o
mastoid process
myring / o
eardrum or tympanic membrane
ossicul / o
ossicle
ot / o
ear
salping / o
eustachian tube, auditory tube
staped / o
stapes
tympan / o
typanic membrane
vestibul / o
vestibule
-aucusis or -cusis
hearing
-meter
instrument to measure
-otia
ear condition
acoustic neuroma
benign tumor arising from the acoustic vestibulocochlear nerve in the brain
cholesteatoma
collection of skin cells and cholesterol in a sac within a sac in the middle ear
Meniere disease
disorder of the labyrinth
otitis media
inflammation of the middle ear
otosclerosis
hardening of the bony tissue of the ear
tinnitus
sensation of noises in the ears without external sound
vertigo
sensation of irregular or whirling motion either of oneself or of external objects
audiometry
testing of the hearing
Rinne test
testing of ear conduction using a tuning fork
