The mucosal, submucosa, fibromuscular propria, and serosa are the four layers that make up the gastrointestinal tract wall, from innermost to outermost.
The mucous membranes are also referred to as the mucosa. Your body's cavities and internal organs that are accessible to outside debris are lined by mucosa.
The submucosa, which is composed of connective tissue and a variety of different cell types such as fibroblasts, lymphocytes, eosinophils, macrophages, plasma cells, & mast cells, is situated between the outer surface of the mucosa as well as the muscularis externa.
Peristalsis, the process of moving food through the stomach as it descends, uses these layers of muscle tissue.
the external lining of the stomach and other abdominal and chest organs and bodily cavities. likewise known as a serous membrane.
Learn more about the gastrointestinal tract at
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