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32 True/False questions

  1. central auditory ns begins attympanic membrane

          

  2. another name for pinnahelix
    anti helix
    tragus
    antitragus
    integral notch
    conch
    lobe

          

  3. osseous is covered with _____ tissueepithelial

          

  4. parts of outer ear-funnels sounds into auditory system
    -provides enhancement of mild to high frequencies
    -protects middle and inner ear against foreign obj

          

  5. sebaceous glands secretedetection of changes in spatial orientation

          

  6. external auditory canal is about ____ longtympanic membrane

          

  7. osseous portion of EAC is composed from _____ AND ____ portions of temporal bonemedial 2/3

          

  8. pinnamost vissible portion of the ear that is composed of cartilage and skin

          

  9. wax producing glands are only found insebum

          

  10. cartilaginous external auditory canal is covered withthick skin

          

  11. balancedetection of changes in spatial orientation

          

  12. ____ separates outer and middle earpinna
    external auditory canal

          

  13. parts of pinnahelix
    anti helix
    tragus
    antitragus
    integral notch
    conch
    lobe

          

  14. osseous portion of external auditory canal composes ____of total canal lengthmedial 2/3

          

  15. hearingperception of sound

          

  16. cartilaginous portion of external auditory canal composes ____of total canal length1/3

          

  17. epithelium and cerumem migrate from _____ of tympanic membrane to ___ ____outer ear; auditory nerve

          

  18. external auditory meautus leads toeardrum/tympanic membrane

          

  19. sebum combines with secretions of ceruminous glans and keratin to producecerumen

          

  20. function of cerumenlubricates ear canal
    protects from foreign objects

          

  21. peripheral auditory system includes structures from ____ to ____outer ear; auditory nerve

          

  22. function of outer earpinna
    external auditory canal

          

  23. external auditory canal ends ateardrum/tympanic membrane

          

  24. house peripheral auditory systemtemporal bones

          

  25. external auditory canal's thick skin contains28mm

          

  26. 3 divisions of peripheral systemouter ear, middle ear, inner ear

          

  27. osseous portion of EAC lackslubricates ear canal
    protects from foreign objects

          

  28. isthmusnarrowest point of canal at junction of cartilagenous and bony portions

          

  29. ea structure increases sound pressure at resonant frequency by10-12 dB

          

  30. two primary structures contributing to resonance of outer ear areconcha and ear canal

          

  31. cochlear nucleus is bounded at the other end by auditory centers of the ____thick skin

          

  32. two portions of external auditory canaltympanic membrane