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77 Matching questions

  1. stapedius is attached to
  2. chorda tympani passes through middle ear space from _____ part of ______ wall to _____ wall, and crosses _____ TM
  3. middle ear function
  4. tympanic cavity is
  5. stapes seals ___ in inner ear
  6. area of foot plate
  7. manubrium of malleus connected toTM acts like a
  8. TM orientation in adults is
  9. stapedius is innervated by
  10. ossicles are suspended from middle ear walls by
  11. decreasing amount of sound passed to inner ear
  12. tympanic membrane slightly coned ______
  13. function of chorda tympani
  14. cartilaginous portion opens by
  15. tensor tympani draws manubrium ____ which _____ ____ to TM
  16. pars tensa
  17. what is the recovery of sound of the aerial ratio of tympanic membrane to stapes footplate?
  18. stapedius contracts _____ to loud sounds
  19. function of eustachain tube
  20. footplate sits in _____ _____
  21. malleus is shaped like
  22. round window
  23. tensor tympani attaches to
  24. promontory
  25. eustachian tube
  26. upon contraction of stapedius
  27. boundary bw outer and middle ear
  28. tensory tympani is innervated by
  29. chorda tympani is branch of
  30. describe the areal ratio of tympanic membrane to stapes footplate
  31. eustachian tube is about ____ long
  32. tympanic membrane has _____ shape
  33. tympanic memrane has _____ ____ color
  34. incus' short process fits into depression on posterior wall of ____ ____ ___
  35. describe impedeance matching function
  36. malleus' handle is called
  37. incus
  38. stapes resembles a
  39. what's the recovery from the increase of pressure of the stapes pushing into the oval window?
  40. TM is attache to bony wall of ear canal by ____
  41. promontory is opposite to
  42. cartilaginous portion opens during
  43. contraction of tensor tympani and stapedius
  44. end of the manubrium is embedded in tympanic membrane at the _____
  45. tinniest bones in the body
  46. epitympatic recess
  47. epitympanic recess is filled by
  48. base of stapes is called
  49. ossicular chain
  50. smallest muscle in the body
  51. osseous portion of eustachian tube is always open on ____ wall of middle ear
  52. stiffening ossicular chain and tympanic membrane
  53. primary source of sound amplification
  54. posterior to tympanic cavity is
  55. tensor tympani contracts to
  56. reasons decrease force of low frequencies
  57. pars flaccida
  58. the ____ portio towards nasopharynx is normally
  59. lateral layer of tympanic membrane closest to side of the head is continuous with skin of
  60. impedence matching function
  61. medial layer of tympanic membrane is continous with
  62. footplate and oval window are attached by
  63. incus' end of long process is attached to ___ head
  64. core layer is
  65. Middle ear cavity aka
  66. the core layer has tough _______ ____ tissue
  67. tympanic membrane landmarks
  68. TM orientation in infants is
  69. middel ear muscles
  70. the area of the footplate is ____ times smaller than pars tensa
  71. Oval window
  72. tensor tympani's orgins
  73. tympanic cavity has air filled cavity bw
  74. two thirds of tympanic membrane that is effective in vibration
  75. lateral layer of tympanic membrane, closest to the side of head has
  76. amplification in middle ear occurs fro frequencies bw
  77. _____ pivots around its short process
  1. a middle ear space
  2. b pump handle
  3. c mucosal lining of middle ear space
  4. d yawning, swallowing, chewing
  5. e CN7 facial nerve
  6. f tactile stimulation
  7. g head of staps
  8. h parallel to EAC
  9. i CN V trigeminal
  10. j facial nerve
  11. k stiffens ossicular chain and tympanic membrane
  12. l maniubrum
  13. m lateral part; posterior wall; anterior; behind
  14. n attic
    -extends beyond superior border of TM
  15. o 3.2 smm
  16. p inward
  17. q 1.5 in
  18. r carries special sensory fibers for taste for anteriro 2/3 of tongue
  19. s boundary bw middle and inner ear; holds footplate of stapes
  20. t incus
  21. u annulus
  22. v 15% of surface area; fibers are missing
  23. w provides pivot point during bibration
  24. x perpendicular to EAC
  25. y basal turn of cochlea
  26. z stapedius
    tensor tympani
  27. aa umbo
  28. ab pars flaccida
    pars tensa
    malleus (lateral process & manubrium)
    cone of light
    annulus
    umbo
    long process of incus
  29. ac malleus head and incus
  30. ad decreases amount of sound passed to inner ear
  31. ae sound traveling from medium of low impedance (air of outer ear canal) to medium of high impedance (cochlear fluid) gets amplified thanks to lvl of action of ossicles and difference in area bw tympanic membane and oval window
  32. af footplate
  33. ag primitive club/mallet
  34. ah annular ligament
  35. ai anterior
  36. aj 100 Hz and 2000 Hz to 2500 Hz
  37. ak stirrum
  38. al sandwiched bw lateral and medial layer
  39. am medially; applies tension
  40. an circular
  41. ao amplification of sound to comepnsate for loss of sound energy when going from air to fluid medium
  42. ap tensor veli paletini
  43. aq oval window
  44. ar located bw windows
    -bony ridge
  45. as external auditory canal
  46. at -protect inner ear from loud sounds
    -tune ear to respond to speech frequencies
    -dampen internal headsounds (chewing, person's own voice)
  47. au force cancelled at relatively large tempanic membrane, then concentrated on small area of oval window (stapes footplate), results in increased sound pressure into inner ear
  48. av closed
  49. aw areal ratio of tympanic membrane to stapes footplate
  50. ax stapes
  51. ay ligaments
  52. az pearly gray
  53. ba connects middle ear to nasopharyngeal cavity
  54. bb ossicles
    -malleus
    -incus
    -stapes
  55. bc mastoid air cells
  56. bd attenuates low frequencies
  57. be 85% of surface area has all 3 layrs
  58. bf tympanic membrane
  59. bg 17
  60. bh 25 dB of sound
  61. bi fibrous connective
  62. bj below oval window; covered by flexible membrane
  63. bk -impedence matching function
    -protection of inner ear structures
  64. bl fluid
  65. bm upper end of malleus handle
  66. bn provide connection bw tympanic membrane and oval window
  67. bo reflexively
  68. bp -equalizes air pressure in middle ear to outer ear pressure
    -ventilation of middle ear cavity
    -oxygen is absorbed by mucous and blood vessels
    -drainage of middle ear secretions to prevent reflux of fluid back/up into middle ear space
  69. bq tympanic cavity
  70. br pars tensa
  71. bs outer ear and inner ear
  72. bt it pullls footplate of stapes out of oval window, and draws stapes toward posterior wall of the middle ear
  73. bu above eustachian tube opening
  74. bv epithelial cells
  75. bw irregularly shaped, tall and narro
  76. bx 2 dB
  77. by stapedius