Thymus

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Revision as of 15:04, 13 October 2008 by imported>Howard C. Berkowitz (New page: The '''thymus (gland)'''is a single, unpaired primary lymphoid organ situated located in the mediastinium, extending upward, in the neck to the lower edge of the thyroid and downwa...)
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The thymus (gland)is a single, unpaired primary lymphoid organ situated located in the mediastinium, extending upward, in the neck to the lower edge of the thyroid and downwards to the cartilage of the fourth rib. It is necessary for normal development of immunologic function early in life. By puberty, it begins to atrophy and be replaced by fat.[1]

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  1. National Library of Medicine, Medical Subject Headings