Light micrograph of a section through a young thymus gland showing the detail of thymic lobules (dark pink) separated by interlobular connective tissue (white). The outer cortex of the lobules is seen containing lymphocytes, a type of immune white blood cell. The thymus is a gland in the lower part of the neck that is involved in the maturation of T-lymphocytes and thus it is an important part of the immune system. Magnification: x100 at 24x36mm size.
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