In nature, plants and animals use internal vasculatures to control many biological functions including nutrient transport, temperature regulation and self-repair. Here we report on a new technique for incorporating a system of bio-mimetic veins and capillaries in an epoxy matrix using a sacrificial filament in conjunction with electrical treeing technologies. Sacrificial filaments are manufactured using chemically treated Poly(lactic acid) (PLA) fibers. These fibers, when heated above 200C, sublimate via a de-polymerization and vaporization process referred to as Vaporization of Sacrifical Components (VaSC). In this work, gold-palladium coated PLA fibers are cast into an epoxy matrix and removed via the VaSC process, leaving large, hollow internal channels with conductive side-walls. A smaller network of dense, highly-branched channels is then grown from the conductive sidewalls using the electrical treeing approach resulting in a continuous hollow network in the host polymer which emulates vessels found in the human circulatory system. Applications for this pluripotent system include multifunctional structural materials capable of self-healing, thermal regulation or electrical and magnetic signature modulation.