Diffusion barrier in the small intestine.
D000818:Animals; D004058:Diffusion; D006801:Humans; D007413:Intestinal Mucosa / Q000378:metabolism; D007421:Intestine, Small / Q000378:metabolism / Q000502:physiology*; D010455:Peptides / Q000378:metabolism; D013395:Sucrose / Q000378:metabolism
D010455:Peptides; D013395:Sucrose