The invention relates to nervous conductors made of reticulated collagen and to a process for preparing the same. According to the invention, the nervous conductors consist of collagen gel in a concentration of 1.2...2% reticulated with 0.1...1% glutaraldehyde. The process claimed by the invention comprises the previous preparation of the fibrillar type I collagen as gel from raw calf skin, reticulation thereof with 0.1...1% glutaraldehyde, after which the reticulated collagen gel is poured between two concentric polyethylene cylinders at 4°C and is frozen at -40°C for 24 h, the resulting tubular hydrogel being then submerged into a phosphate : ethyl alcohol buffer solution for 24 h, after which the tubular collagen hydrogels are dried in a drying chamber, at 26°C, to result in transparent collagen nervous conductors having an internal diameter of 0.5...2.5 mm and a length of 1...10 cm.
