Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation

In this paper, a description of the coracobrachialis caudalis, the scapulotriceps and the extensor carpi radialis muscles is presented in three different species (Common kestrel, Common buzzard and Grey heron) that exhibit notably differing flight styles. The primary goal of this research is to desc...

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Main Authors: Marco Canova, Carla Bedoni, Valeria Harper, Anna Maria Barazzoni, Adriano de Faveri, Annamaria Grandis
Format: Article
Language:English
Published: PAGEPress Publications 2015-12-01
Series:Rivista Italiana di Ornitologia - Research in Ornithology
Subjects:
Online Access:https://sisn.pagepress.org/index.php/rio/article/view/201
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author Marco Canova
Carla Bedoni
Valeria Harper
Anna Maria Barazzoni
Adriano de Faveri
Annamaria Grandis
author_facet Marco Canova
Carla Bedoni
Valeria Harper
Anna Maria Barazzoni
Adriano de Faveri
Annamaria Grandis
author_sort Marco Canova
collection DOAJ
description In this paper, a description of the coracobrachialis caudalis, the scapulotriceps and the extensor carpi radialis muscles is presented in three different species (Common kestrel, Common buzzard and Grey heron) that exhibit notably differing flight styles. The primary goal of this research is to describe the gross anatomy of species not previously examined. Secondly, we attempt to advance a functional interpretation of the structures studied, to understand if such noticeable differences in flight style could have induced a differentiation in the above mentioned wing muscles. Regarding the coracobrachialis caudalis muscle, the Grey heron exhibited an unusual conformation with two “reversed” heads and a great amount of fibrous bundles. Moreover, the “anchors” of the scapulotriceps muscle were well developed in the Grey heron and vestigial in the Common kestrel, while an intermediate situation was observed in the Common buzzard. In addition, the extensor carpi radialis muscle showed interesting findings concerning the number of heads and their disposition. Our data may corroborate some previously advanced functional interpretation. In particular, the structure of the coracobrachialis muscle is in line with the hypothesis of its role as muscular strut. Moreover, the humeral and scapular anchors could play a role in increasing the scapulotriceps tension during some phases of the beat cycle or it may be involved in maintaining wing posture. Regarding the different number of heads and the disposition of the extensor carpi radialis muscle, we believe that it could play a role in maintaining the wing position. Although a correct functional interpretation can be obtained only through multidisciplinary studies, we believe that an in-depth gross anatomy study should always be conducted beforehand, to serve as basis for further and more specific research.
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spelling doaj.art-02e4d1503e20474ca644af8b44912cad2022-12-21T20:47:15ZengPAGEPress PublicationsRivista Italiana di Ornitologia - Research in Ornithology0035-68752385-08332015-12-0185110.4081/rio.2015.201Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretationMarco Canova0Carla Bedoni1Valeria Harper2Anna Maria Barazzoni3Adriano de Faveri4Annamaria Grandis5Department of Veterinary Medical Sciences, University of BolognaVeterinary practitionerVeterinary practitionerDepartment of Veterinary Medical Sciences, University of BolognaInstitute for Environmental Protection and Research (ISPRA), Ozzano dell’Emilia (BO)Department of Veterinary Medical Sciences, University of BolognaIn this paper, a description of the coracobrachialis caudalis, the scapulotriceps and the extensor carpi radialis muscles is presented in three different species (Common kestrel, Common buzzard and Grey heron) that exhibit notably differing flight styles. The primary goal of this research is to describe the gross anatomy of species not previously examined. Secondly, we attempt to advance a functional interpretation of the structures studied, to understand if such noticeable differences in flight style could have induced a differentiation in the above mentioned wing muscles. Regarding the coracobrachialis caudalis muscle, the Grey heron exhibited an unusual conformation with two “reversed” heads and a great amount of fibrous bundles. Moreover, the “anchors” of the scapulotriceps muscle were well developed in the Grey heron and vestigial in the Common kestrel, while an intermediate situation was observed in the Common buzzard. In addition, the extensor carpi radialis muscle showed interesting findings concerning the number of heads and their disposition. Our data may corroborate some previously advanced functional interpretation. In particular, the structure of the coracobrachialis muscle is in line with the hypothesis of its role as muscular strut. Moreover, the humeral and scapular anchors could play a role in increasing the scapulotriceps tension during some phases of the beat cycle or it may be involved in maintaining wing posture. Regarding the different number of heads and the disposition of the extensor carpi radialis muscle, we believe that it could play a role in maintaining the wing position. Although a correct functional interpretation can be obtained only through multidisciplinary studies, we believe that an in-depth gross anatomy study should always be conducted beforehand, to serve as basis for further and more specific research.https://sisn.pagepress.org/index.php/rio/article/view/201Avian anatomyarmforearmmyologyshoulderwild birds
spellingShingle Marco Canova
Carla Bedoni
Valeria Harper
Anna Maria Barazzoni
Adriano de Faveri
Annamaria Grandis
Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
Rivista Italiana di Ornitologia - Research in Ornithology
Avian anatomy
arm
forearm
myology
shoulder
wild birds
title Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
title_full Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
title_fullStr Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
title_full_unstemmed Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
title_short Anatomical differences in three wing muscles of the Grey heron (Ardea cinerea), the Common buzzard (Buteo buteo) and the Common kestrel (Falco tinnunculus): a possible functional interpretation
title_sort anatomical differences in three wing muscles of the grey heron ardea cinerea the common buzzard buteo buteo and the common kestrel falco tinnunculus a possible functional interpretation
topic Avian anatomy
arm
forearm
myology
shoulder
wild birds
url https://sisn.pagepress.org/index.php/rio/article/view/201
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