TOPOGRAFIA DOS COLATERAIS CALIBROSOS DO ARCO AÓRTICO DE UM MÃO - PELADA (Procyon cancrivorus GRAY, 1865) (CARNIVORA PROCYONIADAE)
DOI:
https://doi.org/10.5380/avs.v9i2.4067Keywords:
Procyon cancrivorus, Mão Pelada, Arco aórtico, Artérias, Crab eating raccoon, Aortic arch, Artery.Abstract
Estudou-se a topografia dos colaterais calibrosos do arco aórtico em um exemplar de Procyon cancrivorus, adulto, macho, proveniente da Fazenda Experimental do Glória, da Universidade Federal de Uberlândia, MG, Brasil, o qual teve seus vasos arteriais injetados com solução corada de Neoprene Latex 450, com posterior fixação em solução aquosa de formol a 10% e submetidos à dissecação. O arco aórtico encontra-se em correspondência à terceira costela, no antímero esquerdo da cavidade torácica. O primeiro ramo calibroso do arco aórtico é o tronco braquiocefálico, situado medialmente à terceira costela, originando as artérias carótida comum esquerda, carótida comum direita e a subclávia direita, em correspondência ao primeiro espaço intercostal. A artéria subclávia esquerda é o segundo ramo emergente do arco aórtico, originando-se medialmente à terceira costela. As artérias subclávias direita e esquerda, cedem os mesmos colaterais em ambos os antímeros, ou seja, tronco costocervical esquerdo (medialmente à primeira costela), tronco costocervical direito (borda cranial da primeira costela), artérias cervical superficial esquerda e cervical superficial direita (borda cranial da primeira costela), artéria torácica interna esquerda (medialmente à segunda costela) e artéria torácica interna direita (borda cranial da primeira costela).
The topography of the thick collaterals of the aortic arch in a crab eating raccoon Procyon cancrivorus Gray, 1865, Carnivora Procyoniadae
Abstract
An anatomical study has been carried out on the topography of the thick collateral branches of the aortic arch in an adult male specimen of raccoon (Procyon cancrivorus) from the Gloria Experimental Farm, Federal University of Uberlandia MG, Brasil. For this purpose, the arterial blood vessels were injected with a ruddy solution of Neoprene Latex 450, fixed by means of a 10% aqueous solution of formaldehyde and then dissected. It has been observed that the aortic arch is in correspondence with the third rib at the left side of the thoracic cavity The first thick branch of the aortic arch is the brachiocephalic trunk which is situaded medially in regard to the third rib, originating the left common carotid artery, the right common carotid artery and the right subclavian artery in correspondence with the first intercostal space. The left subclavian artery is the second emerging branch of the aortic arch originating itself medialy to the third rib. The right and the left subclavian arteries give way to the same collaterals in both sides, as the left costocervical trunk (medially to the first rib), the right costocervical trunk (cranial edge of the first rib), the left and the right superficial cervical arteries (cranial edge of the first rib, the left internal thoracic artery (medially to the second rib), and the right internal thoracic artery (cranial edge of the first rib).
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