Intestinal and cloacal lymphoepithelial glands in the Australian Echidna [ ... ]

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Intestinal and cloacal lymphoepithelial glands in the Australian Echidna - a possible homologue of the bursa of Fabricius



Journal of Anatomy (1969), 105: 3​

G.C. Schofield
R.N.P. Cahill

:great:​

The respective roles of the thymus and the avian bursa of Fabricius as primary lymphoid organs governing the development of different classes of lymphocytes have been studied extensively in past years.

A mammalian equivalent of the bursa has not yet been clearly established but homology between the bursa and the lymphoid tissues of the gut, particularly the ileum and caecoappendix, has been suggested.

The lymphoepithelial glands of the echidna are examined more comprehensively and the possibility that they are bursal homologues is discussed further.

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https://rapidshare.com/files/458051015/Echidna_Bursa.rar

Department of Anatomy
Monash University, Clayton, Victoria, 1969.
10 pages.

Thank you !