Histomorphology of Thymus Gland in Guinea Fowl (Numida meleagris)
نویسندگان
چکیده
The thymus gland is a lymphoid tissue derived from III and IV pharyngeal pouches. It is the source of stem cells that migrate to other lymphoid organs and participate in immune reactions (Kent, 1978). The thymus gland is regarded immunologically as a primary or central lymphoid organ and its presence is essential for the development of peripheral lymphoid tissues and their associated adaptive immune functions (Clawson, 1967). The thymus produces precursors of cells (T-cells) involved in specific cell mediated immune responses and co-operate with B cells in the production of antibodies. It has a significant role in immune system of birds. Hence, the present study was undertaken due to its importance in immunological competence and to provide microscopic details of thymus in guinea fowl.
منابع مشابه
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