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vol.17 issue1THE EPIDIDYMAL REGION OF THE PIGEON (Columbia livia): MORPHOLOGICAL AND MORPHOMETRICAL EVALUATIONMESO AND MICROSCOPIC STUDY OF THE FACIAL VEIN AND ADJACENT TISSUES author indexsubject indexarticles search
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Revista chilena de anatomía

Print version ISSN 0716-9868

Abstract

RESOAGLI, Edmundo H.; BODE, Federico F.; GRACIA DE MILLAN, Sonnia  and  SOTO, Silverio G.. VARIATION OF COMMON BRACHIOCEPHALIC TRUNK IN EQUINE. Rev. chil. anat. [online]. 1999, vol.17, n.1, pp.27-31. ISSN 0716-9868.  http://dx.doi.org/10.4067/S0716-98681999000100004.

SUMMARY: This study focuses on the variations of the brachial and brachiocephalic trunks in equines. The variations observed at the beginning, along and at the end of the intratoracic collaterals artery are described in this work. Twenty-two mixed blood equines of different weight, sex and age injected with repletion paste for blood vessels were processed. The anatomic pieces were obtained by disection. Then they were phatographically recored, and preserved by deshidratation. The origin of the AIS in the axillar artery, or of the ACP described by CHAVEAU, 1905 as anamalies was not observed in our experiment. The displacement of the AED towards the 3rd intercostal space, and of the ACP towards the 2nd intercostal space described by this author were observed in the cases examined. However, the common origin of the ACS and ATE was not observed. Although the ATE may originate in the ATI, as described by CHAVEAU, it was observed as a collateral of the ATI in our disections. The origin of the ACC and ACP from a common trunk coincides with the variations described by GETTY et al., 1982. BOSSI's statements (1903) abaut the major percentage of variations in the ACC and ATE do not coincide with our descriptions. There is agreement with BOSSI ou the use of the term «axillar artery» instead of «subclavia Artery» in domestic perisodactilos and artiodactilos, whenever the clacicle is not perfectly developed. The data obtained reveal variations of intratoracic collaterals. The largest number of variations were observed at the beginning, along, and at the end of the costo-cervical and deep cervical arteries. It is essential to know the frequency of such variations in the field of both anatomy and surgery. In this way, serious mistakes sometimes committed during the surgery of toracic pathologies could be avoided.

Keywords : Equine; . Irrigation; Brachiocephalic trunk.

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