Meckel’s Diverticle: A Gut Associated Lymphoid Organ in Chickens
Halfway along the jejunum, closer to the ileum than to the duodenum, a blind ending tube, the Meckel’s diverticle, can be seen in more than 60% of all adult chickens (1). This diverticulum caecum vitelli is the remnant of the omphalomesenteric or vitelline duct that forms the intermediate between the yolk sac and the primitive gut of the embryos. In the first days after hatching, the Meckel’s diverticle is unusually large and filled with yolk, which still functions as food supply for the young chicken (2).
KeywordsGerminal Center Lymphoid Organ Chicken Embryo Macroscopical Observation Routine Histology
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