Medical Terminology OFT 140

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Author:
r13wolf
ID:
48123
Filename:
Medical Terminology OFT 140
Updated:
2010-11-08 11:10:06
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Chapter Thirteen Ear
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Description:
Combining Forms/Suffixes; Anatomical Terms
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  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 (uterine tube)
  8. Tympan/o
    eardrum
  9. Myring/o
    eardrum
  10. -acusis
    hearing condition
  11. External Ear
    (3 Parts)
    • - pinna
    • - external auditory meatus (canal)
    • - cerumen
  12. Pinna
    • external ear
    • - auricle (little ear)
    • - projected part of the external ear
    • - (pinna= feather)
  13. External Auditory Meatus (Canal)
    • external ear
    • - external passage for sounds to collect from the pinna to the tympanus
    • - (meat/o= opening)
  14. Cerumen
    • external ear
    • - waxy substance secreted by glands located throughout the external canal
  15. Middle Ear
    (4 Parts)
    • - tympanic membrane (TM)
    • - malleus
    • - incus
    • - stapes
  16. Tympanic Membrane (TM)
    • middle ear
    • - eardrum
    • - drum-like structure that receives sound collected in the external auditory meatus (canal) & amplifies it through the middle ear
  17. Malleus
    • middle ear
    • - hammer
    • - first of the three auditory ossicles of the middle ear
  18. Incus
    • middle ear
    • - anvil
    • - middle of the three auditory ossicles of the middle ear
  19. Stapes
    • middle ear
    • - stirrup
    • - last of the three auditory ossicles of the middle ear
  20. Eustaichian Tube
    (Auditory Tube)
    tube connecting the middle ear to the pharynx (throat)
  21. Mastoid Process
    projection of the temporal bone located behind the ear containing air cells that connect to the middle ear
  22. Oval Window
    membrane that covers the opening between the middle ear & the inner ear
  23. Inner Ear
    (9 Parts)
    • structures & liquids that relay sound waves to the auditory nerve fibers on a path to the brain for interpretation of sound
    • - 9 parts: labyrinth, cochlea, perilymph, endolymph, organ of Corti, vestibule, utricle, saccule, semicircular canals
  24. Labyrinth
    • inner ear
    • - maze
    • - inner ear consisting of bony & membranous labyrinths
  25. Cochlea
    • inner ear
    • - coiled tubular structure of the inner ear that contains the organ of Corti
    • - (cochlea= snail)
  26. Perilymph
    • inner ear
    • - fluid that fill the bony labyrinth of the ear
  27. Endolymph
    • inner ear
    • - fluid within the cochlear duct of the inner ear (labyrinth)
  28. Organ of Corti
    • inner ear
    • - organ located in the cochlea that contains receptors (hair cells) that receive vibrations & generate nerve impulses for hearing
  29. Vestibule
    • inner ear
    • - middle part of the inner ear in front of the semicircular canals & behind the cochlea that contains the utricle & saccule
  30. Utricle
    • inner ear
    • - larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
    • - (uter= leather bag)
  31. Saccule
    • inner ear
    • - smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
    • - (sacculus= small bag)
  32. Semicircular Canals
    • inner ear
    • - three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement

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