Gastric mucosa
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![Diagram of alkaline Mucous layer in stomach with mucosal defense mechanisms](/Images/godic/202502/18/Stomach_mucosal_layer_labeled.svg4859.png")
The gastric mucosa is the mucous membrane layer of the stomach which contains the glands and the gastric pits. In humans it is about 1 mm thick and its surface is smooth, soft, and velvety. It consists of epithelium, lamina propria, and the muscularis mucosae.