Ear: Anatomical Terms

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  1. external ear
    • pinna
    • external auditory meatus (canal)
    • cerumen
  2. pinna
    auricle; projected part of the external ear
  3. external auditory meatus (canal)
    external passage for sounds collected from the pinna to the tympanum
  4. cerumen
    waxy substance secreted by glands located throughout the external canal
  5. middle ear
    • tympanic membrane (TM)
    • malleus
    • incus
    • stapes
  6. tympanic membrane (TM)
    eardrum; drum-like structure that receives sound collected in the external auditory meatus and amplifies it through the middle ear
  7. malleus
    hammer; first of three auditory ossicles of the middle ear
  8. incus
    anvil; middle of the three auditory ossicles of the middle ear
  9. stapes
    stirrup; last of the three auditory ossicles of the middle ear
  10. eustachian/auditory tube
    tube connecting the middle ear to the pharynx (throat)
  11. mastoid process
    projection of the temporal bone located behind the ear containing air cells that connect to the middle ear
  12. oval window
    membrane that covers the opening between the middle ear and inner ear
  13. inner ear
    structures and liquids that relay sound waves to the auditory nerve fibers on a path to the brain for interpretation of sound

    • labyrinth
    • cochlea
    • perilymph
    • endolymph
    • organ of Corti
    • vestibule
    • utricle
    • saccule
    • semicircular canals
  14. labyrinth
    maze; inner ear consisting of bony and membranous labyrinths
  15. cochlea
    coiled tubular structure of the inner ear that contains the organ of Corti
  16. perilymph
    fluid that fills the bony labyrinth of the ear
  17. endolymph
    fluid within the cochlear duct of the inner ear
  18. organ of Corti
    organ located in the cochlea that contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
  19. vestibule
    middle part of the inner ear in front of the semicircular canals and behind the cochlea that contains the utricle and saccule
  20. utricle
    larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
  21. saccule
    smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
  22. semicircular canals
    three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
Card Set:
Ear: Anatomical Terms
2011-07-11 20:15:43
medterm ch13 quiz6

Quiz 6
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