Arterial vascularization of the cloacal bursa of the greater rhea (Rhea americana americana Linnaeus, 1758)

Authors

  • Radan Elvis Matias de Oliveira Universidade Federal Rural do Semi-Árido
  • Gleidson Benevides de Oliveira Universidade Federal Rural do Semi-Árido
  • Ferdinando Vinicius Fernandes Bezerra Universidade Federal Rural do Semi-Árido
  • Felipe Venceslau Câmara Universidade Federal Rural do Semi-Árido
  • Herson da Silva Costa Universidade Federal Rural do Semi-Árido
  • André Vinícius Nunes Silva Universidade Federal Rural do Semi-Árido
  • Hélio Noberto de Araújo júnior Universidade Federal Rural do Semi-Árido
  • Moacir Franco de Oliveira Federal Rural University of the Semi Arid

DOI:

https://doi.org/10.14393/BJ-v32n3a2016-29904

Keywords:

Cloacal-bursa artery, Cloacal artery, Mesenteric caudal artery, Fowls, Ratites, Immunologic system

Abstract

The cloacal bursa is an organ in fowls, which triggers lymphocyte maturation and transference to other tissues. Since there is scanty information on its morphology in wild species in spite of its importance in the fowls´ immunological system, current analysis describes the arterial vascularization of the cloacal bursa in the greater rhea. Twenty juvenile rheas (male and female), which died of natural causes, were obtained from the Center for the Multiplication of Wild Animals (CEMAS/UFERSA). The animals were dissected and their thoracic aorta cannulated and red-stained Latex Neoprene 650 was introduced. The cloacal bursa was irrigated from the terminal branches of the abdominal aorta similar to the caudal mesenteric artery and to the right and left internal iliac arteries. The right and left internal pudenda arteries originated from the right and left internal iliac arteries which, in their turn, gave rise to cloacal-bursa arteries and to the right and left cloacal arteries in all studied animals. The caudal mesenteric artery contributed to the arterial blood of the cloacal bursa in almost all studied animals through the anastomosis of right or left internal pudenda artery, with direct branches to the cloacal bursa. The cloacal bursa of the greater rhea is irrigated by cloacal-bursa arteries and cloacal right and left and also by the mesenteric caudal artery, with small variations with regard to the number and layout of the anastomoses and branches from the arteries. The latter are specific characteristics and differentiate them from standards perceived in other fowls. 

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Author Biographies

Felipe Venceslau Câmara, Universidade Federal Rural do Semi-Árido

Departamento de Ciências Animais; Medicina Veterinária

Moacir Franco de Oliveira, Federal Rural University of the Semi Arid

Department of Animal Sciences; Veterinary Medicine

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Published

2016-06-01

How to Cite

OLIVEIRA, R.E.M. de, OLIVEIRA, G.B. de, BEZERRA, F.V.F., CÂMARA, F.V., COSTA, H. da S., SILVA, A.V.N., ARAÚJO JÚNIOR, H.N. de and OLIVEIRA, M.F. de, 2016. Arterial vascularization of the cloacal bursa of the greater rhea (Rhea americana americana Linnaeus, 1758) . Bioscience Journal [online], vol. 32, no. 3, pp. 691–698. [Accessed24 May 2022]. DOI 10.14393/BJ-v32n3a2016-29904. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/29904.

Issue

Section

Agricultural Sciences