Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)

ABSTRACT The social and economic roles of goat farming in Northeastern Brazil, allied to the fact that the use of goat middle ear ossicles for research and human ear surgery training has not yet been proposed, justify the study of their applicability as an experimental model. The middle ears of 19 g...

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Main Authors: A.C. Santos, A. Gradela, M.D. Faria
Format: Article
Language:English
Published: Universidade Federal de Minas Gerais 2021-12-01
Series:Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000701287&tlng=en
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author A.C. Santos
A. Gradela
M.D. Faria
author_facet A.C. Santos
A. Gradela
M.D. Faria
author_sort A.C. Santos
collection DOAJ
description ABSTRACT The social and economic roles of goat farming in Northeastern Brazil, allied to the fact that the use of goat middle ear ossicles for research and human ear surgery training has not yet been proposed, justify the study of their applicability as an experimental model. The middle ears of 19 goats (Capra aegagrus hircus) from the bone collection of the Laboratory and Didactic Anatomy Museum of Domestic and Wild Animals of the Federal University of Vale do São Francisco (UNIVASF) were dissected. The malleus, incus, and stapes were evaluated regarding their macroscopic morphology and biometry (length, width, and height). Ossicle morphology was similar to sheep, human, and bovine morphology. The malleus was 1.3 times heavier and 2.2 times longer than the incus, and 9.0 times heavier and 3.7 times longer than the stapes. The size relationship was positive between the stapes and the malleus and negative between the stapes and the incus. It is concluded that the middle ear size and the anatomical similarities with human ossicles make goats a useful model for experimental scientific studies, reconstructive surgery practice of the ossicular chain, and human ear surgery training.
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spelling doaj.art-0376e1c6bac5425cb8f52ed1b6e2289b2022-12-22T04:12:38ZengUniversidade Federal de Minas GeraisArquivo Brasileiro de Medicina Veterinária e Zootecnia1678-41622021-12-017361287129310.1590/1678-4162-12482Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)A.C. Santoshttps://orcid.org/0000-0001-7268-4016A. Gradelahttps://orcid.org/0000-0001-5560-6171M.D. Fariahttps://orcid.org/0000-0002-3558-9842ABSTRACT The social and economic roles of goat farming in Northeastern Brazil, allied to the fact that the use of goat middle ear ossicles for research and human ear surgery training has not yet been proposed, justify the study of their applicability as an experimental model. The middle ears of 19 goats (Capra aegagrus hircus) from the bone collection of the Laboratory and Didactic Anatomy Museum of Domestic and Wild Animals of the Federal University of Vale do São Francisco (UNIVASF) were dissected. The malleus, incus, and stapes were evaluated regarding their macroscopic morphology and biometry (length, width, and height). Ossicle morphology was similar to sheep, human, and bovine morphology. The malleus was 1.3 times heavier and 2.2 times longer than the incus, and 9.0 times heavier and 3.7 times longer than the stapes. The size relationship was positive between the stapes and the malleus and negative between the stapes and the incus. It is concluded that the middle ear size and the anatomical similarities with human ossicles make goats a useful model for experimental scientific studies, reconstructive surgery practice of the ossicular chain, and human ear surgery training.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000701287&tlng=enmalleusincusstapesmacroscopic anatomymorphometry
spellingShingle A.C. Santos
A. Gradela
M.D. Faria
Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
malleus
incus
stapes
macroscopic anatomy
morphometry
title Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
title_full Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
title_fullStr Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
title_full_unstemmed Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
title_short Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)
title_sort anatomical and morphometric study of goat middle ear ossicles capra aegagrus hircus
topic malleus
incus
stapes
macroscopic anatomy
morphometry
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000701287&tlng=en
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