The Ear

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The Ear
2013-04-19 00:30:43
Med terms

med terms ch. 11
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  1. acous/o, audi/o
  2. aer/o
    air or gas
  3. aur/i, ot/o
  4. cerumin/o
  5. salping/o
    eustachian tube or uterine tube
  6. tympan/o, myring/o
  7. -acusis
    hearing condition
  8. external ear
    outer structures of the ear that collect sound
  9. pinna
    auricle (little ear); projected part of the external ear
  10. external auditory meatus or canal
    external passage for sounds collected from the pinna to the tympanum
  11. cerumen
    a waxy substance secreted by glandslocated throughout the external canal
  12. middle ear
    structures in the middle of the ear that vibrate sound from the tympanic membrane to the inner ear
  13. tympanic membrane (TM)
    eardrum; drum-like structure that receives sound collected in the external auditory canal and amplifies it through the middle ear
  14. malleus
    hammer; first of the three auditory ossicles of the middle ear
  15. incus
    anvil; middle of the three auditory ossicles of the middle ear
  16. stapes
    stirrup; last of the three auditory ossicles of the middle ear
  17. eustachian tube/ auditory tube
    tube connecting the middle ear to the pharynx (throat)
  18. oval window
    membrane that covers the opening between the middle ear and inner ear
  19. inner ear/ labyrinth
    intricate, fluid-filled, intercommunicating bondy 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 movement and position to maintain balance and quilibrium
  20. cochlea
    coiled tubular structure of the inner ear that contains the organ of Corti
  21. perilymph
    fluid that fills the bony labyrinth of the inner ear
  22. endolymph
    fluid within the membranous labyrinth of the inner ear
  23. organ of Corti
    structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
  24. vestibule
    middle part of the inner ear, in front of the smicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide body balance and equilibrium
  25. utricle
    the larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
  26. saccule
    the smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
  27. semicircular canals
    three canals within the inner ear that contain specialized receptor cells that generated nerve impulses with body movement
  28. otalgia/otodynia
  29. otorrhagia
    bleeding from the ear
  30. otorrhea
    purulent drainage from the ear
  31. tinnitus
    a jingling; a ringing or buzzing in the ear
  32. vertigo
    a turning round; dizziness
  33. otitis externa
    inflammation of the external auditory meatus (canal)
  34. cerumen impaction
    excessive buildup of wax in the ear that often reduces hearing acuity, especially in elderly persons
  35. myringitis/ tympanitis
    inflammation of the eardrum
  36. otitis media
    inflammation of the middle ear
  37. aerotitis media
    inflammation of the middle ear from changes in atmospheric pressure; often occurs with frequent air travel
  38. eustachian obstruction
    blockage of the eustachian tube, usually as a result of infection, as in otitis media
  39. otosclerosis
    hardening of the bony tissue in the ear
  40. acoustic neuroma
    benign tumor on the auditory nerve (8th cranial nerve) that causes vertigo, tinnitus, and hearing loss
  41. labyrinthitis
    inflammation of the labyrinth (inner ear)
  42. 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
  43. deafness
    general term for partial or complete loss of hearing
  44. conductive hearing loss
    hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
  45. sensorineural hearing loss
    hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve
  46. mixed hearing loss
    combination of sensorineural and conductive hearing loss
  47. presbyacusis/ presbycusis
    hearing impairment in old age
  48. audiometry
    process of measuring hearing
  49. audiometer
    instrument to measure hearin
  50. audiogram
    record of hearing measurement
  51. audiologist
    health professional who specializes in the study of hearing impairments
  52. auditory acuity testing
    physical assessment of hearing; useful in differentiating between conductive and sensorineural hearing loss
  53. tuning fork
    a two-pronged, fork-like instrument that vibrates when struck; used to test hearing, especially bone conduction
  54. brainstem auditory evoked potential (BAEP)/ brainstem auditory evoked response (BAER)
    electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; commonly used to asses hearing in newborns
  55. otoscopy
    use of an otoscope to examine the external auditory canal and tympanic membrane
  56. 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
  57. 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
  58. microsurgery
    surgery with the use of a microscope used on delicate tissue, such as the ear
  59. myringotomy/tympanostomy
    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
  60. otoplasty
    surgical repair of the external ear
  61. stapedectomy
    excision of the stapes to correct otosclerosis
  62. tympanoplasty
    vein graft of a scarred tympanic membrane to improve sound conduction
  63. auditory prosthesis
    any internal or external device that improves or substitues natural hearing
  64. hearing aid
    an external amplyfying device designed to improve hearing more effective collection of sound into the ear
  65. cochlear implant
    an electronic device implanted in the chochlea that provides sound perception to patients with severe or profound sensorineural (nerve) hearing loss in both ears
  66. ear lavage
    irrigation of the external ear canal, often to remove excessive buildup of cerumen
  67. ear instillation
    introduction of the medicated solution into the external canal, usually administered by drop (gt) or drops (gtt) in the affected ears
  68. antibiotic
    a drug that inhibits the growth of or destroys microorganisms, used to treat diseases caused by bacteria
  69. antihistamine
    a drug that blocks the effects of histamine
  70. histamine
    a regulatory body substance released in allergic reactions, causing swelling and inflammation of tissues; seen in hay fever and urticaria (hives)
  71. antiinflammatory
    a drug that reduces inflammation
  72. decongestant
    a drug that reduces congestion and swelling of membranes, such as those of t he nose and eustachian tube in an infection
  73. BAEP
    brainstem auditory evoked potential
  74. BAER
    brainstem auditory evoked response
  75. ENT
    ear, nose and throut
  76. PE
  77. TM
    tympanic membrane