MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY
Light microscopy of small calibre venous blood vessels. Small veins have very thin walls with elastic fibres (indigo coloured) that serve to maintain vessel diameter whist allowing expansion or constriction. A thin but discontinuous layer of smooth muscle cells may form a tunica media for the vessel wall. Magnification x180 when printed at 10 cm wide.
Model release not required. Property release not required.