Banca de QUALIFICAÇÃO: NATACHA CINTIA FERREIRA FERNANDES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : NATACHA CINTIA FERREIRA FERNANDES
DATE: 11/08/2020
TIME: 14:00
LOCAL: sera realizada por meio de video conferencia devido a pandemia
TITLE:

Morphological description of aortic arch, abdominal arteries and rete mirabile in Choloepus didactylus

KEY WORDS:

Sloth, dissecation, blood vessels

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

The Xenarthras are considered the most varied order of mammals as they group animals of very different 
morphologies, behaviors and habitats. In this superorder are the anteaters, armadillos and sloths divided into 4
 families, 13 genera and 29 species. Choloepus didactylus, also known as Preguiça-real or Unau is the largest 
species of the family Megalonychidae, and one of its main characteristic is the presentation of two fingers on 
the forelimbs. The rete mirabile is formed by a network of arteries and veins in which, in the limbs, it has the 
function of a countercurrent heat exchange system and maintains the temperature in the limbs at a lower level
 than in the rest of the body. Seven specimens of Choloepus didactylus were used, 5 adults and 2 pups, from 
the Rodrigues Alves Forest Zoobotanical Garden of the Amazon located in Belém / PA. In 4 specimens, 
dissections of the common carotid artery were performed for injection of red stained Neoprene latex for 
arterial visualization and dissection of the jugular vein, in 1 specimen, for injection of blue stained Neoprene
 latex in order to allow venous visualization. In one of the specimens, the skin of the thoracic limbs was folded
 and the musculature dissected until exposure of the Rete mirabile, where its fragments were used for making 
and analyzing histological slides at the Animal Histology and Embryology Laboratory (LHEA) of the Universidade
 Rural Rural da Amazônia .

BANKING MEMBERS:
Presidente - 1733442 - ANA RITA DE LIMA
Interna - 2313941 - ELANE GUERREIRO GIESE
Interna - 1661748 - ERIKA RENATA BRANCO
Externa ao Programa - 3494995 - ANDREA MAGALHAES BEZERRA
Externa à Instituição - ELLEN YASMIN EGUCHI MESQUITA - Unama
Externa à Instituição - FERNANDA LUIZA DE MIRANDA LINS E LINS - UFRA