Blood vessels of the rat brain. Upper photomicrograph shows a representative unstained brain section illustrating networks of highly interconnected blood vessels. Lower photomicrographs show the inner diameter size (arrowheads) of three focused capillaries. Scale bars: 100 μm and 10 μm respectively.
Cortés-Sol et al. BMC Neuroscience 2013 14:7 doi:10.1186/1471-2202-14-7