Block 2 Chp. 11 The Ear Flashcards Preview

Med Term > Block 2 Chp. 11 The Ear > Flashcards

Flashcards in Block 2 Chp. 11 The Ear Deck (87):
1

acous/o

hearing

2

audi/o

hearing

3

aer/o

air or gas

4

aur/i

ear

5

ot/o

ear

6

cerumin/o

wax

7

salping/o

Eustachian tube or uterine tube

8

tympano/o

eardrum

9

myring/o

eardrum

10

-acusis

hearing condition

11

external ear

outer structures of the ear that collect sound

12

pinna

auricle (little ear); projected part of the external ear

13

external auditory meatus or canal

external passage for sounds collected from the pinna to the tympanum

14

cerumen

a waxy substance secreted by glands located throughout the external canal

15

middle ear

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

16

tympanic membrane (TM)

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

17

malleus

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

18

incus

anvil; middle of the three auditory ossicles of the middle ear

19

stapes

stirrup; last of the three auditory ossicles of the middle ear

20

eustachian tube

tube connecting the middle ear to the pharynx (throat)

21

auditory tube

Eustachian tube

22

oval window

membrane that covers the opening between the middle ear and inner ear

23

inner ear

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 movements and position to maintain balance and equilibrium

24

labyrinth

inner ear

25

cochlea

coiled tubular structure of the inner ear that contains the organ of Corti

26

perilymph

fluid that fills the bony labyrinth of the inner ear

27

endolymph

fluid within the membranous labyrinth of the inner ear

28

organ of Corti

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

29

vestibule

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

30

utricle

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

31

saccule

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

32

semicircular canals

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

33

otalgia

earache

34

otodynia

earache

35

otorrhagia

bleeding from the ear

36

otorrhea

purulent (consisting of/containing pus) drainage from the ear

37

tinnitus

a jingling; a ringing or buzzing in the ear

38

vertigo

a turning round; dizziness

39

otitis externa

inflammation of the external auditory meatus

40

cerumen impaction

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

41

myringitis

inflammation of the eardrum

42

tympanitis

inflammation of the eardrum

43

otitis media

inflammation of the middle ear

44

aerotitis media

inflammation of the middle ear from changes in atmospheric pressure; often occurs with frequent air travel

45

Eustachian obstruction

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

46

otosclerosis

hardening of the bony tissue in the ear

47

acoustic neuroma

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

48

labyrinthitis

inflammation of the labyrinth (inner ear)

49

Meniere disease

disorder of the 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 frequency and intensity

50

deafness

general term for partial or complete loss of hearing

51

conductive hearing loss

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

52

sensorineural hearing loss

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

53

mixed hearing loss

combination of sensorineural and conductive hearing loss

54

presbyacusis

hearing impairment in old age

55

presbycusis

hearing impairment in old age

56

audiometry

process of measuring hearing

57

audiometer

instrument to measure hearing

58

audiogram

record of hearing measurement

59

audiologist

health professional who specializes in the study of hearing impairments

60

auditory acuity testing

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

61

tuning fork

a two-pronged, fork-like instrument that vibrates when struck; used to test hearing, especially bone conduction

62

brainstem auditory evoked potential (BEAP)

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

63

brainstem auditory evoked response (BAER)

same as BEAP

64

otoscopy

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

65

pneumatic otoscopy

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

66

tympanometry

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

67

microsurgery

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

68

myringotomy

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

69

tympanostomy

same as myringotomy

70

otoplasty

surgical repair of the external ear

71

stapedectomy

excision of the stapes to correct otosclerosis

72

tympanoplasty

vein graft of a scarred tympanic membrane to improve sound conduction

73

auditory prosthesis

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

74

hearing aid

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

75

cochlear implant

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

76

ear lavage

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

77

ear instillation

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

78

antibiotic

a drug that inhibits the growth of or destroys microorganisms; used to treat diseases caused by bacteria

79

antihistamine

a drug that blocks the effects of histamine

80

histamine

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

81

antiinflammatory

a drug that reduces inflammation

82

decongestant

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

83

BAEP

brainstem auditory evoked potential

84

BAER

brainstem auditory evoked response

85

ENT

ear, nose, and throat

86

PE

polyethylene

87

TM

tympanic membrane