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Thymus Gland

Meaning

The Thymus Gland is a specialized primary lymphoid organ situated in the upper anterior chest, crucial for the development and maturation of T-lymphocytes, which are central to adaptive cellular immunity. The gland is also an endocrine organ, secreting various peptide hormones that regulate T-cell function and proliferation. It undergoes a process of age-related involution, where its functional tissue is progressively replaced by fat, impacting immune reserve.