Ch. 13 Ear

Front 1

auricle (pinna)

Back 1

external structure located on both sides of the head; directs sound waves into the external auditory meatus

Front 2

external auditory meatus (canal)

Back 2

short tube that ends at the tympanic mm; contains glands that secrete earwax

Front 3

tympanic mm (eardrum)

Back 3

semitransparent mm that separates the external auditory meatus and the middle ear cavity; transmits sound vibrations to the ossicles

Front 4

eustachian tube

Back 4

connects middle ear and the pharynx; equalizes pressure on both sides of th eardrum

Front 5

ossicles

Back 5

bones of the middle ear that carry sound vibrations; ossicles are composed of malleaus. incus, and stapes

Front 6

labyrinth (inner ear)

Back 6

bony spaces w/n temporal bone of the skull; contains cochlea, semicircular canals, vestibule

Front 7

semicircular canals and vestibule

Back 7

contains receptors and endolymph that help the body maintain it sense of balance (equilibruim)

Front 8

mastoid bone and cells

Back 8

located in the skull bone behind the external auditory meatus

Front 9

labrynthitis/ mastoiditis/ myringitis/ otomastoiditis/ tympanitis

Back 9

inflammation of the labyrinth/ mastoid bone/ tympanic mm/ ear and mastoid bone/ middle ear

Front 10

otalgia

Back 10

pain in the ear

Front 11

otomycosis

Back 11

abnormal condition of fungus in the ear

Front 12

otopyorrhea

Back 12

discharge of pus from the ear

Front 13

otorrhea

Back 13

discharge from the ear (may be serous, bloody, etc)

Front 14

otosclerosis

Back 14

hardening of the ear

Front 15

acoustic neuroma

Back 15

benign tumor w/n auditiry canal growing form the acoustic nerve; may cause hearing loss and damage structures of the cerebellum

Front 16

ceruminoma

Back 16

tumor of a gland that secretes earwax

Front 17

cholesteatoma

Back 17

cystlike mass composed of epithelial cells and cholesterol ocurring in the middle ear;

Front 18

Meniere d.

Back 18

chronic d. of the inner ear chara. by dizziness, ringing in the ear, and hearing loss

Front 19

otitis externa/ media

Back 19

inflammation of the outer/ middle ear

Front 20

presbycusis

Back 20

hearing impairment in old age

Front 21

tinnitus

Back 21

ringing in the ears

Front 22

vertigo

Back 22

sense that either one's own body or the environment is revolving; may indicate inner ear d.

Front 23

cochlear implant

Back 23

pertaining to the cochlea implant; surgically inserted prosthetic device that uses electrical currents to stimulate the auditory nerve and provide hearing)

Front 24

labyrinthectomy/ mastoidectomy/ stapedectomy

Back 24

excision of the labyrinth; mastoid bone; stapes

Front 25

mastoidotomy/ myringotomy

Back 25

incision into the mastoid bone/ tympanic mm

Front 26

myringoplasty/ tympanoplasty

Back 26

surgical repair of the tympanic mm/ of middle ear

Front 27

audiogram

Back 27

graphic record of hearing

Front 28

audiometer

Back 28

instrument used to measure hearing

Front 29

audiometry

Back 29

measurement of hearing

Front 30

otoscope

Back 30

instrument used for visual examination of the ear

Front 31

otoscopy

Back 31

visual examination of the ear

Front 32

tympanometer

Back 32

instrument used to measure middle ear (function)

Front 33

tympanometry

Back 33

measurement of movement of the tympanic mm

Front 34

audiologist

Back 34

one who studies and specializes in hearing

Front 35

audiology/ otology

Back 35

study of hearing/ ear

Front 36

aural/ cochlear/ vestibular/ vestibulocochlear

Back 36

pertaining to the ear/ cochlea/ vestibule/ vestibule and cochlea

Front 37

otologist/ otorhinolaryngologist

Back 37

physician who studies and treats d. of the ear/ ear, nose, and larynx

Front 38

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Back 38

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Front 39

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Back 39

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Front 40

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Back 40

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