SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Pancreatic blood vessels. Coloured scanning electron micrograph (SEM) of a resin cast of blood vessels from the pancreas. This network of vessels infiltrates the tissue, supplying it with blood. The pancreas secretes digestive enzymes and the hormones insulin and glucagon, which regulate blood sugar levels. 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.