PMID: 2122373Sep 1, 1990Paper

Postnatal development of the middle ear: areal ratios in kittens

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
J P Thomas, Edward J Walsh

Abstract

Developmental changes in tympanic membrane to stapedial footplate areal ratios were investigated in kittens from birth through the twentieth postnatal day. Measurements from 45 kittens (85 temporal bones) were obtained from the pars tensa region of the tympanic membrane and the stapedial footplate region bounded by the annular ligament using standard macrophotographic and computer digitization techniques. Tympanic membrane and stapedial footplate areas were approximately 70% and 80%, respectively, of their adult size at birth and relevant areas increased exponentially during early postnatal life. Adultlike dimensions were achieved by the end of the first postnatal week. Tympanic membrane:stapedial footplate areal ratios increased from approximately 25:1 to 30:1 during the first postnatal week, before the developmental period during which adultlike auditory thresholds and response amplitudes are acquired. Thus, the areal ratio influences on impedance-matching characteristics of the middle ear do not appear to significantly affect the postnatal development of auditory function in cats.

References

Jul 1, 1979·The Journal of the Acoustical Society of America·E M RelkinD F Konkle
Mar 1, 1986·The Journal of the Acoustical Society of America·E J WalshE Javel
Mar 1, 1986·The Journal of the Acoustical Society of America·E J WalshE Javel
Mar 1, 1986·The Journal of the Acoustical Society of America·E J WalshE Javel
Mar 1, 1986·American Journal of Otolaryngology·J Tonndorf, H Pastaci
Jul 1, 1973·Acta Oto-laryngologica·R Pujol, D Hilding
Jun 1, 1972·The Journal of the Acoustical Society of America·S M Khanna, J Tonndorf
May 1, 1970·The Journal of Comparative Neurology·R Pujol, R Marty
Jun 1, 1983·Journal of Morphology·M Huangfu, J C Saunders
Apr 1, 1981·Journal of Comparative and Physiological Psychology·G Ehret, R Romand
Jan 1, 1980·Acta Oto-laryngologica·E M Relkin, J C Saunders

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Citations

Aug 1, 1994·The Anatomical Record·W M ZimmerJ C Saunders
Jun 24, 1998·The Journal of the Acoustical Society of America·J L FitzakerleyE J Walsh
Apr 29, 2006·The Journal of the Acoustical Society of America·Lei SongEdward J Walsh
Jan 1, 1995·Journal of Basic and Clinical Physiology and Pharmacology·H Sohmer, S Freeman
May 1, 1993·American Journal of Otolaryngology·Y E CohenJ C Saunders
Jan 1, 1995·Brain Research. Brain Research Reviews·C M Henley, L P Rybak

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