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Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)

The blood supply in the small intestine of seven Tamandua tetradactyla (Linnaeus, 1758), was studied. The method included preparation of the macroscopic collection report, perfusion of the arterial network with water (40ºC), injection of colored latex (Neoprene 650®, 2350-0003 Suvinil® dye), fixatio...

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Main Authors: Ferreira, Jussara Rocha, Souza, Ana Lúcia Rezende, Mortoza, Amanda Rocha, Rezende, Lorenna Cardoso
Format: Artigo
Language: English
Published: Sociedade Brasileira de Zoologia 2017
Subjects:
Artéria mesentérica
Aparelho digestivo
Tamanduá
Online Access: http://repositorio.unb.br/handle/10482/28249
https://dx.doi.org/10.1590/S1984-46702011000400010
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spelling ir-10482-282492021-12-23T14:51:37Z Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae) Ferreira, Jussara Rocha Souza, Ana Lúcia Rezende Mortoza, Amanda Rocha Rezende, Lorenna Cardoso Artéria mesentérica Aparelho digestivo Tamanduá The blood supply in the small intestine of seven Tamandua tetradactyla (Linnaeus, 1758), was studied. The method included preparation of the macroscopic collection report, perfusion of the arterial network with water (40ºC), injection of colored latex (Neoprene 650®, 2350-0003 Suvinil® dye), fixation in formaldehyde (10%), and preservation in ethanol (50%). For description and analyzes, dissection under mesoscopic light and photo documentation were performed. The small intestine of T. tetradactyla is irrigated by the cranial mesenteric artery, the ventral visceral branch of the abdominal aorta. The artery emerges from the retroperitoneum and disperses between the layers of the common mesentery, parallel to the caudal mesenteric artery. The primary cranial collateral branches irrigate the pancreas, duodenum, jejunum (13 arteries), ileum (14 vessels), and the cecocolic region. The arteries anastomose with adjacent vessels to form arches. Terminal branches are derived from these peri-intestinal arcs that reach into the intestine through the mesenteric boundary and form capillaries within the lining. The vascular pattern of the lesser anteater differs from those of other previously described vertebrates, but is similar to the pattern found in fetuses of domestic mammals during early intestinal development. 2017-12-07T04:57:36Z 2017-12-07T04:57:36Z 2011-08 Artigo FERREIRA, Jussara R et al. Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae). Zoologia (Curitiba), v. 28, n. 4, p. 488-494, ago. 2011. DOI: https://doi.org/10.1590/S1984-46702011000400010. Disponível em: https://www.scielo.br/j/zool/a/8gk9KYyWZKJGH6cgGz84kHg/?lang=en#. Acesso em: 10 set. 2021. http://repositorio.unb.br/handle/10482/28249 https://dx.doi.org/10.1590/S1984-46702011000400010 en Acesso Aberto Zoologia (Curitiba) - This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY NC). Fonte: https://www.scielo.br/j/zool/a/8gk9KYyWZKJGH6cgGz84kHg/?lang=en#. Acesso em: 10 set. 2021. application/pdf Sociedade Brasileira de Zoologia
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language English
topic Artéria mesentérica
Aparelho digestivo
Tamanduá
spellingShingle Artéria mesentérica
Aparelho digestivo
Tamanduá
Ferreira, Jussara Rocha
Souza, Ana Lúcia Rezende
Mortoza, Amanda Rocha
Rezende, Lorenna Cardoso
Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
description The blood supply in the small intestine of seven Tamandua tetradactyla (Linnaeus, 1758), was studied. The method included preparation of the macroscopic collection report, perfusion of the arterial network with water (40ºC), injection of colored latex (Neoprene 650®, 2350-0003 Suvinil® dye), fixation in formaldehyde (10%), and preservation in ethanol (50%). For description and analyzes, dissection under mesoscopic light and photo documentation were performed. The small intestine of T. tetradactyla is irrigated by the cranial mesenteric artery, the ventral visceral branch of the abdominal aorta. The artery emerges from the retroperitoneum and disperses between the layers of the common mesentery, parallel to the caudal mesenteric artery. The primary cranial collateral branches irrigate the pancreas, duodenum, jejunum (13 arteries), ileum (14 vessels), and the cecocolic region. The arteries anastomose with adjacent vessels to form arches. Terminal branches are derived from these peri-intestinal arcs that reach into the intestine through the mesenteric boundary and form capillaries within the lining. The vascular pattern of the lesser anteater differs from those of other previously described vertebrates, but is similar to the pattern found in fetuses of domestic mammals during early intestinal development.
format Artigo
author Ferreira, Jussara Rocha
Souza, Ana Lúcia Rezende
Mortoza, Amanda Rocha
Rezende, Lorenna Cardoso
author_sort Ferreira, Jussara Rocha
title Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
title_short Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
title_full Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
title_fullStr Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
title_full_unstemmed Vascularization of the small intestine in lesser anteaters, Tamandua tetradactyla (Xenarthra: Myrmecophagidae)
title_sort vascularization of the small intestine in lesser anteaters, tamandua tetradactyla (xenarthra: myrmecophagidae)
publisher Sociedade Brasileira de Zoologia
publishDate 2017
url http://repositorio.unb.br/handle/10482/28249
https://dx.doi.org/10.1590/S1984-46702011000400010
_version_ 1721216667613134848
score 13.657419

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