Nasal blood vessels. Coloured scanning electron micrograph (SEM) of a resin cast of blood vessels from the mucous membrane of the nose. This network of vessels infiltrates the tissue, supplying it with blood. As air enters the nose it is warmed by the blood vessels that line the nasal cavity. The cast was made by injecting resin into the blood vessels and then chemically digesting the surrounding tissues.
Model release not required. Property release not required.