Contemporary conceptualization of histological and developmental features of enteric mucosa

Abstract:

The histological features of the enteric mucosa are conceptualized as an interface for the absorption of water-soluble nutrients. The absorptive surface is composed of the absorptive cells and it is internalized inside the body in the form of a tube connected with the outside world. During embryonic development, the tube epithelium is derived from endoderm germ layer. Absorptive surface of endodermal origin is surrounded by mesoderm of the visceral layer of the lateral plates. Together with the absorption of nutrients, the enteric mucosa provides access to numerous antigens present in food, and it contributes to the immunological equilibrium between the flow of information and the immune response mediated by IgA immunoglobulins, the process supported by the bacterial colony located in the large intestine

Key words:
endoderm; epithelium; mesoderm; mucosa; MALT