medical term ch. 8 sensory

audi/o, audit/o

hearing

aur/o, auricul/o

hearing

blephar/o

eyelid

cerumin/o

wax

cohle/o

cochlea

conjuctiv/o

conjunctiva

cor/o, core/o, pupill/o

pupil

corne/o

cornea

cycl/o

ciliary body

glauc/o

gray, silver

ir/o, irid/o

iris

kerat/o

cornea

lacrim/o

tears

mastoid/o

mastoid process

myring/o

eardrum, middle ear

nas/o

nose

ocul/o

eye

opthalm/o

eye

opt/o, optic/o

eye, vision

ossicul/o

ossicle

phac/o, phak/o

lens

presby/o

old

pupill/o

pupil

retin/o

retina

salping/o

tube

scier/o

white of the eye

scot/o

darkness

tympan/o

eardrum, middle ear

uve/o

uvea

scelera

outer eye membrane

cornea

the transparent layer forming the front of the eye.

eyelid

eye covering

conjuctiva

mucous membrane that lines the eyelids and outer surface of the eyeball

choroid

posterior membrane in middle layer of eye

ciliary body

Structure surrounding the lens that connects the choroid and iris. anterior

pupil

black circular center

lens

colorless, flexible, transparent body behind iris

iris

the colored part of the eye, which is the muscle that controls the size of the pupil

uvea

contains iris, choroid membrane & ciliary bodies

retina

the light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information

rods

Retinal receptors that detect black, white, and gray

cones

receptors cells perceive color & bright light

optic nerve

transmits nerve impulses from the retina to the brain

eyebrows

keeps particles from entering eye (eyelashes)

lacrimal glands

secrete liquid to moisten eyes & produce tears

tears

moisture secreted from lacrimal glands

ear

3 divisons

-external, middle, & inner

auricle

funnel-like structure leading from the external ear to the external auditory meatus; also called pinna

eardrum

semitransparent moves in response to sound waves & produces vibrations (tympanic membrane)

auditory ossicles

malleus, incus, stapes; anchors eardrum to tympanic cavity

eustachian tube

connects middle ear to pharynx

osseous labyrinth

1/2 tube makes up semicircular canals; bony canal in temporal bone

membraneous labyrinth

1/2 tubes that make up semicircular canals

semicircular canals

structure in inner ear for equilibrium

cochlea

snail shaped in inner ear, contains organ of corti

decibel

measure of intensity of sound

equlibrium

A state of balance

vestibul

bony chamber between semicircular canal & cochlea

olfactory organs

top of nasal cavity containing olfactory receptors

taste buds

organ that sense taste of food

papilla

tiny projection on superior surface of tongue, contains taste buds

taste cells

receptor cell within taste buds

ophthalmologist

physician who studies and treats diseases of the eye

optometrist

health professional who prescribes corrective lenses and/or eye exercises

tonometry

measurement of pressure in eye

ophthalmoscopy

exam of interior of eye

optician

trained tech makes & fits corrective lens

otologist

ear specialist

audiologist

nonmedical hearing specialist

otorhinolaryngologist

spc. for ears, nose & throat

otoscopy

visual exam of ear

audiometry

measurement of acoustic frequencies

exophthalmos

abnormal protrusion of the eyeball

lacrimation

excessive tearing

nystagmus

excessive eyeball movement

blepharitis

inflammation of the eyelid

conjuctivitis

infectious inflammation of conjuctiva (pinkeye)

blepharoptosis

drooping eyelid, paralysis

chalazion

small, hard, cystic mass (granuloma) on the eyelid

trichiasis

abnormal growth of eyelashes

sty, stye

infection of the sebaceous gland of the eyelid

irritis

inflammation of the iris

keratitis

inflammation of the cornea

retinitis

inflammation of the retina

scleritis

inflammation of the sclera

deafness

partial or total loss of hearing

otosclerosis

hardening of the bony tissue in the ear

tinnitus

ringing or buzzing in the ears

otalgia

pain in the ear

otorrhagia

bleeding from the ear

otorrhea

purulent drainage from the ear

vertigo

dizziness

otitis media

inflammation of the middle ear

otitis externa

inflammation of the outer ear (swimmers ear)

meniere's disease

elevated fluid pressure within the cochlea

keratoplasy

corneal transplant

blepharoplasty

surgical repair of the eyelid

otoplasty

surgical repair of the ear

tympanoplasty

surgical repair of the eardrum