Horse Choanae are Directionally Asymmetric

SUMMARY: Studies related to the upper respiratory pathway asymmetries are still scarce in the veterinary literature. We present here a study of choanae asymmetries of a pure horses belonging to “Cavall Pirinenc Català” (Pyrenean Horse Breed). For this goal, the palates of 23 dry...

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Autores principales:	Parés-Casanova,P. M, Bottini,I, Tugnoli,C
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2021
Materias:	Cavall Pirinenc Català Nasal cavity Nasal laterality Pharynx, Oropharyngeal cavity Upper airways
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000400956
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spelling	oai:scielo:S0717-950220210004009562021-08-16Horse Choanae are Directionally AsymmetricParés-Casanova,P. MBottini,ITugnoli,C Cavall Pirinenc Català Nasal cavity Nasal laterality Pharynx, Oropharyngeal cavity Upper airways SUMMARY: Studies related to the upper respiratory pathway asymmetries are still scarce in the veterinary literature. We present here a study of choanae asymmetries of a pure horses belonging to “Cavall Pirinenc Català” (Pyrenean Horse Breed). For this goal, the palates of 23 dry skulls with no apparent pathologies were photographed and evaluated using geometric morphometrics. On each photo, we identified and digitized a total of 26 points (subset of 2 mid-sagittal, 4 paired landmarks (discrete homologous points) and 10 semilandmarks (points on an outline determined by extrinsic criteria) per side on the choana. Both fluctuating and directional asymmetries appeared statistically significant, the latter accounting more than half of the total variation. The lateral bend observed in horse choanae may be due to the asymmetrically positioned nasal passages. So detected equine choana asymmetry must rather be considered functional, with no clinical implication and presents an important consideration when equine choanae shape.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.39 n.4 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000400956en10.4067/S0717-95022021000400956
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cavall Pirinenc Català Nasal cavity Nasal laterality Pharynx, Oropharyngeal cavity Upper airways
spellingShingle	Cavall Pirinenc Català Nasal cavity Nasal laterality Pharynx, Oropharyngeal cavity Upper airways Parés-Casanova,P. M Bottini,I Tugnoli,C Horse Choanae are Directionally Asymmetric
description	SUMMARY: Studies related to the upper respiratory pathway asymmetries are still scarce in the veterinary literature. We present here a study of choanae asymmetries of a pure horses belonging to “Cavall Pirinenc Català” (Pyrenean Horse Breed). For this goal, the palates of 23 dry skulls with no apparent pathologies were photographed and evaluated using geometric morphometrics. On each photo, we identified and digitized a total of 26 points (subset of 2 mid-sagittal, 4 paired landmarks (discrete homologous points) and 10 semilandmarks (points on an outline determined by extrinsic criteria) per side on the choana. Both fluctuating and directional asymmetries appeared statistically significant, the latter accounting more than half of the total variation. The lateral bend observed in horse choanae may be due to the asymmetrically positioned nasal passages. So detected equine choana asymmetry must rather be considered functional, with no clinical implication and presents an important consideration when equine choanae shape.
author	Parés-Casanova,P. M Bottini,I Tugnoli,C
author_facet	Parés-Casanova,P. M Bottini,I Tugnoli,C
author_sort	Parés-Casanova,P. M
title	Horse Choanae are Directionally Asymmetric
title_short	Horse Choanae are Directionally Asymmetric
title_full	Horse Choanae are Directionally Asymmetric
title_fullStr	Horse Choanae are Directionally Asymmetric
title_full_unstemmed	Horse Choanae are Directionally Asymmetric
title_sort	horse choanae are directionally asymmetric
publisher	Sociedad Chilena de Anatomía
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000400956
work_keys_str_mv	AT parescasanovapm horsechoanaearedirectionallyasymmetric AT bottinii horsechoanaearedirectionallyasymmetric AT tugnolic horsechoanaearedirectionallyasymmetric
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Horse Choanae are Directionally Asymmetric

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