The excretory system of the liver in wild animals. VI. Biliary ducts of the great anteater (Myrmecophaga tridactyla)

The systematization of the biliary ducts of the liver of the great anteater (Myrmecophaga tridactyla) is analyzed. The ductus choledocus has no affluents and results from the union of the ductus cysticus and the ductus hepaticus always arises from theramus principalis dexter and the ramus principalis sinister, and is seen without tributaries in three cases, receiving them meanwhile in the other one. The ramus principalis dexter is made up of the ramus lateralis lobi dextri and the ramus medialis lobi dextri. The ramus principalis sinister is formed by the ramus lateralis lobi sinistri, the ramus lobi sinistri and the ramus lobi quadrati.Neste trabalho são sistematizadas as vias bilíferas do tamanduá bandeira (Myrmecophaga tridactyla). Os resultados demonstram: o ductos choledocus, livre de afluentes, origina-se da união do ramus principalis dexter e do ramus principalis sinister. O ramus principalis dexter é invariavelmente composto pelo ramus lateralis lobi dextri e pelo ramus medialis lobi dextri, enquanto o ramus principalis sinister está composto pelo ramus lateralis lobi sinistri, ramus medialis lobi sinistri e ramus lobi quadrati