Medical Terminology- Ch 11 Opthalmic/ Ear

Front 1

acous/o, audi/o

Back 1

hearing

Front 2

aer/o

Back 2

air or gas

Front 3

aur/i, ot/o

Back 3

ear

Front 4

cerumin/o

Back 4

wax

Front 5

salping/o

Back 5

eustachian tube or uterine tube

Front 6

tympan/o, myring/o

Back 6

eardrum

Front 7

-acusis

Back 7

hearing condition

Front 8

anatomic terms

Front 9

external ear

Back 9

outer structures of the ear that collect sound

Front 10

pinna

Back 10

auricle (little ear); projected part of external ear (pinna=feather)

Front 11

external auditory meatus or canal

Back 11

external passage for sounds collected form the pinna to the tympanum

Front 12

cerumen

Back 12

waxy substance secreted by glands located throughout the external canal

Front 13

middle ear

Back 13

structures in the middle of the ear that vibrate sound from the tympanic membrane to inner ear

Front 14

tympanic membrane ™

Back 14

eardrum; drum-like structure that receives sound collected in external auditory canal and amplifies it through the middle ear

Front 15

malleus

Back 15

hammer; first of the 3 auditory ossicles of the middle ear

Front 16

incus

Back 16

anvil; middle of 3 auditory ossicles of middle ear

Front 17

stapes

Back 17

stirrup; last of 3 auditory ossicles of middle ear

Front 18

eustachain tube/ auditory tube

Back 18

tube connected middle ear to pharynx (throat)

Front 19

oval window

Back 19

membrane that covers opening btw middle ear and inner ear

Front 20

inner ear / labyrinth

Back 20

intricate fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body mvmt and position to maintain balance and equilibrium

Front 21

cochlea

Back 21

coiled tubular structure of the inner ear that contains the organ of Corti (cochlea = snail)

Front 22

perilymph

Back 22

fluid that fills the bony labyrinth of the inner ear

Front 23

endolymph

Back 23

fluid within the membranous labyrinth of the inner ear

Front 24

organ of Corti

Back 24

structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing

Front 25

vestibule

Back 25

middle part of the inner ear, in front of the semicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide body balance and equilibrium

Front 26

utricle

Back 26

larger of two sacs within the membranous labyrinth of the vestibule in the inner ear

Front 27

saccule

Back 27

smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear (small bag)

Front 28

semicircular canals

Back 28

three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement

Front 29

otalgia / otodynia

Back 29

earache

Front 30

otorrhagia

Back 30

bleeding from the ear

Front 31

otorrhea

Back 31

purulent drainage from the ear

Front 32

tinnitus

Back 32

jingling; ringing or buzzing in the ear

Front 33

vertigo

Back 33

a turning round; dizziness

Front 34

diagnostic terms

Front 35

otitis externa

Back 35

inflammation of the external auditory meatus (canal)

Front 36

cerumen impaction

Back 36

excessive buildup of wax in the ear that often reduces hearing acuity, especially in elderly persons

Front 37

myringitis / tympanitis

Back 37

inflammation of the eardrum

Front 38

otitis media

Back 38

inflammation of the middle ear

Front 39

aerotitis media

Back 39

inflammation of the middle ear from changes in atm press. Often occurs with frequent air travel

Front 40

eustachian obstruction

Back 40

blockage of the eusachain tube, usually as a result of infection, as in otitis media

Front 41

otosclerosis

Back 41

hardening of the bony tissue in the ear

Front 42

acoustic neuroma

Back 42

benign tumor on the auditory nerve (8th cranial nerve) that causes vertigo, tinnitus, and hearing loss

Front 43

labyrinthitis

Back 43

inflammation of the labyrinth (inner ear)

Front 44

Ménière disease

Back 44

disorder of inner ear resulting from an excessive buildup of endolymphatic fluid, causing episodes of vertigo, tinnitus, nausea, vomiting, and hearing loss; one or both ears can be affected, and attacks vary in both freq and intensity

Front 45

deafness

Back 45

gen term for partial or complete loss of hearing

Front 46

conductive hearing loss

Back 46

hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles

Front 47

sensorineural hearing loss

Back 47

hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve

Front 48

mixed hearing loss

Back 48

combination of sensorineural and conductive hearing loss

Front 49

presbyacusis/ presbycusis

Back 49

hearing impairment in old age

Front 50

diagnostic tests and procedures

Front 51

audiometry

Back 51

process of measuring hearing

Front 52

audiometer

Back 52

instrument to measure hearing

Front 53

audiogram

Back 53

record of hearing instrument

Front 54

audiologist

Back 54

health professional who specializes in the study of hearing impairments

Front 55

auditory acuity testing

Back 55

physical assessment of hearing; useful in differentiating btw conductive and sensorineural hearing loss

Front 56

tuning fork

Back 56

2-pronged fork-like instrument that vibrates when struck; used to test hearing, esp bone conduction

Front 57

brainstem auditory evoked potential (BAEP)/ brainstem auditory evoked response (BAER)

Back 57

electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; commonly used to assess hearing in newborns

Front 58

otoscopy

Back 58

use of an otoscope to examine the external auditory canal and tympanic membrane

Front 59

pneumatic otoscopy

Back 59

otoscopic observation of the tympanic membrane as air is released into the external auditory meatus; immobility indicates the presence of middle ear effusion (fluid buildup), as occurs as a result of otitis media

Front 60

tympanometry

Back 60

measurement of the compliance and mobility (conductibility) of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures

Front 61

microsurgery

Back 61

surgery with the use of a microscope used on delicate tissue, such as the ear

Front 62

myringotomy/ tympanostomy

Back 62

incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media

Front 63

otoplasty

Back 63

surgical repair of the external ear

Front 64

stapedectomy

Back 64

excision of the stapes to correct otosclerosis

Front 65

tympanoplasty

Back 65

vein graft of a scarred tympanic membrane to improve sound conduction

Front 66

auditory prosthesis

Back 66

any internal or external device that improves or substitutes for natural hearing

Front 67

hearing aid

Back 67

an external amplifying device designed to improve hearing by more effective collection of sound into the ear

Front 68

cochlear implant

Back 68

an electronic device implanted in the cochlea that provides sound perception to px with severe or profound sensorineural (nerve)hearing loss in both ears

Front 69

ear lavage

Back 69

irrigation of the external ear canal, often to remove excessive buildup of cerumen

Front 70

ear instillation

Back 70

introduction of a medicated soln into the external canal, usually administered by drop (gt) or drops (gtt) in the affected ears

Front 71

drugs

Front 72

antibiotic

Back 72

a drug that inhibits the growth of or destroys microorganisms; used to tx diseases caused by bacteria (eg otitis media)

Front 73

antihistamine

Back 73

a drug that blocks the effects of histamine

Front 74

histamine

Back 74

a regulatory body substance released in allergic rxns; causing swelling and inflammation of tissues; seen in hay fever and urticaria (hives)

Front 75

antiinflammatory

Back 75

a drug that reduces inflammation

Front 76

decongestant

Back 76

a drug that reduces congestion and swelling of membranes, such as those of the nose and eustachian tube in an infection

Front 77

BAEP

Back 77

brainstem auditory evoked potential

Front 78

BAER

Back 78

brainstem auditory evoked response

Front 79

ENT

Back 79

ear, nose, throat

Front 80

PE

Back 80

polyethylene

Front 81

TM

Back 81

tympanic membrane