Plates of Peyer
Discovered by Switzerland Johan Peyer (1653-1712), the plates of Peyer are bulky lymphoid aggregates of Follicule S primary educations and secondaries sitting in the mucous membrane of the final part of the Iléon. The mucous membrane consists of cells recovering the interior of the hollow bodies in contact with the air (in fact the Intestin). This layer of cells is also made up of conjunctive Tissu, containing lymphatic components of various varieties of which plates of Peyer.
The quantity of plates of Peyer is increasing as one approaches the large Intestin and have functions of presentation of the Antigène S of digestive origin. Indeed towards the end of the small intestine the large intestine contains an enormous quantity of Bactérie S which should not have access to blood circulation. It is at this place that are the Glandes of Brünner only under mucous membrane of the Duodénum.
The plates of Peyer present many specific characteristics (distribution, functions.).
They form part with amygdalae and the appendix of the system of lymphoid fabric associated with the digestive tract ( Gut Associated Lymphoid Tissue or GALT), subsystem of the MALT ( Mucosa Associated Lymphoid Tissue or lymphoid fabric associated with the mucous membranes).
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