Both cannulas were tunneled subcutaneously and exposed on the back of the rat to allow access when the animal was conscious.
Se insertaron ambas cánulas subcutáneamente, y se las mantuvieron expuestas en las espaldas del animal para permitir el acceso cuando éste estaba conciente.
As duas cânulas foram inseridas subcutaneamente e expostas nas costas do animal para permitir o acesso quando o animal estava consciente.