Question

what is bursa of fabricius ?​

Answer 1

Answer:

a glandular sac opening into the cloaca of a bird, producing B-cells.

Answer 2

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The bursa of Fabricius, a lymphoid organ found only in birds, is an important tissue for B cell maturation [1,42]. The internal surface of the bursa of Fabricius contains many folds and large numbers of lymphoid follicles. This surface is covered with specialized epithelial cells that can take up luminal Ags.