CT study of acoustic signal pathway through the middle ear of the sperm whale (Physeter macrocephalus)

Auteurs-es

  • Taryn Davids Department of Otolaryngology-Head and Neck Surgery, Canada
  • Richard J. Mount Department of Otolaryngology-Head and Neck Surgery, Canada
  • Susan Blaser Department of Medical Imaging, Hospital for Sick Children, 555 University Ave., Toronto, ON, Canada
  • Paolo Campisi Department of Otolaryngology-Head and Neck Surgery, Canada
  • Robert V. Harrison Department of Otolaryngology-Head and Neck Surgery, Canada

Mots-clés :

Computerized tomography, Conservation, Mammals, Acoustic environment, Acoustic signals, Bony structures, Dry specimens, Endangered species, High resolution computer tomographies, Inner ear structures, Marine mammals, Middle ears, Sperm Whales

Résumé

La capacité des mammifères marins de s'adapter à un environnement acoustique sous-marin est une réalisation évolutif remarquable. D'un intérêt particulier est de savoir comment l'anatomie de l'oreille moyenne et interne sont modifiés par rapport à ceux des mammifères terrestres. Pour les grandes espèces de baleines il y a très peu de descriptions anatomiques de l'oreille, en raison de la grandeur et densité des os impliquées. Parce que le cachalot (Physeter macrocephalus), est classé espèce menacée, les spécimens frais sont rares. Toutefois, nous sommes en mesure de présenter ici une étude du labyrinthe osseux temporelle du cachalot, en tomographie haute résolution. Nous discuterons les adaptations de l'anatomie de l'oreille moyenne et interne pour l’environment marin.

Fichiers supplémentaires

Publié-e

2011-12-01

Comment citer

1.
Davids T, Mount RJ, Blaser S, Campisi P, Harrison RV. CT study of acoustic signal pathway through the middle ear of the sperm whale (Physeter macrocephalus). Canadian Acoustics [Internet]. 1 déc. 2011 [cité 15 mai 2026];39(4):13-7. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2491

Numéro

Vol. 39 No. 4 (2011)

Rubrique

Articles techniques

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