Collateral branches of the aortic arch of Callithrix penicillata (É Geoffroy, 1812) (Primates, Cebidae)

Abstract

Callithrix penicillata is a non-human primate endemic to Brazil. It is widely used in biomedical studies; however, little is known about the anatomy of this species, including the vascular aspects. Therefore, this work describes the aortic arch of this species, in order to corroborate comparative studies and hemodynamic tests for experimental models. Five C. penicillata were evaluated, which presented two distinct types of aortic arch angioarchitecture, one commonly found in other mammals, and another similar to Saguinus niger, suggesting that this pattern may be related to the fact of both species belong to the family Callithrichidae.

Keywords

• Anatomia comparada
• Angioarquitetura
• Sagui-de-tufo-preto
• Vascularização arterial