SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Blood vessel cast. Coloured scanning electron micrograph (SEM) of a resin cast of blood vessels from connective tissue. The blood vessels were injected with a resin, which then set. Chemicals were used to remove the surrounding tissues and reveal the structure of the blood vessel network. This is from a piece of connective tissue covering a skeletal muscle.
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