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胃胶状粘液由胃粘膜表层上皮细胞分泌,粘附于胃粘膜表面上。这是一种醣蛋白多聚体,由四个相同的亚单位(分子量约500,000)以二硫键与其蛋白质核心连结所组成。它起润滑作用使胃粘膜免受机械性损伤。Heatloy曾断定胃胶状粘液抗氢离子反弥散的屏障作
Gastric mucosal mucus is secreted by the epithelial cells of the gastric mucosa and adheres to the surface of the gastric mucosa. This is a glycoprotein multimer composed of four identical subunits (molecular weight about 500,000) that are joined by disulfide bonds to their protein cores. It acts as a lubricant to protect the gastric mucosa from mechanical damage. Heatloy has determined that the gastric colloid mucus resists the anti-dispersion barrier of hydrogen ions