The lumen of the stomach is
- Lined with epithelium (Option B)
Because, the lumen of stomach which is lined by gastric mucosa which secretes mucous by columnar epithelical cells attached to it.
What is gastric mucosa?
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 simple columnar epithelium, lamina propria, and the muscularis mucosae.
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