R. BICK, B. POINDEXTER, UT MEDICAL SCHOOL / SCIENCE PHOTO LIBRARY R. BICK, B. POINDEXTER, UT MEDICAL SCHOOL / SCIENCE PHOTO LIBRARY
Artery cross-section, fluorescence deconvolution micrograph. Fluorescent dyes have been used to highlight cellular structures and proteins: smooth muscle (green), cell nuclei (blue), microvasculature (red). The layers seen here are the tunica intima (red, the internal layer), the tunica media (green, the middle layer) and the tunica adventitia (red, the outer layer). This outer layer contains microvasculature (small blood vessels), a tissue known as the vasa vasorum, which supplies blood to the walls of blood vessels.
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