Respiratório do quati

Descrição morfológica dos ramos colaterais da aorta abdominal do tamanduá-mirim. (Tamandua tetradactyla)1

Breno C. Macedo2, Ana R. Lima2, Ana Carla Barros de Souza3, Luiza Corrêa Pereira³, Érika Branco2

ABSTRACT.- Macedo B. C. 2, Lima A. R.2, A. C. B. Souza³, L. C. Pereira³, Branco E.2, 2011. Descrição morfológica dos ramos colaterais da aorta abdominal do tamanduá-mirim. (Tamandua tetradactyla). Pesquisa Veterinária Brasileira 00(0):00-00. Instituto de Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Campus de Belém, PA 66.077-530, Brazil. E-mail: [e-mail]
Tamandua tetradactyla, Xenarthra, native to South America, little studied and morphology is unknown in many respects. Given the importance of morphological data for various studies, this study aimed to elucidate the branching of the abdominal aorta of this species by subsidizing the studies of comparative anatomy. To this end we used the four specimens, two males and two females, both young, from the area of Paragominas-PA, donated after natural death, the Institute of Animal Health and Production, Federal Rural University of Amazonia. The arterial system was filled with latex and the animal fixed contrasted with formaldehyde solution (10%), and then dissected revealing the abdominal aorta and its collateral branches. The diaphragm showed different topography, so that the abdominal aorta emerged at the level of T16. The parietal branches, consisting of a pair of caudal phrenic arteries, two pairs of intercostal arteries and three pairs of lumbar arteries, originated dorsolateral between T16 and L3. Among the visceral branches, stood out: the celiac artery, which originated in an average of three branches, forming the arteries: the left gastric, hepatic and splenic mesenteric artery, arranged caudal to the celiac trunk; adrenal arteries that emerged from the abdominal aorta at point common with the phrenic artery flow in most cases, noting also the formation of adrenal