Answer:
Mucosa
Step-by-step explanation:
The stomach wall can be subdivided into:
• Mucosa- consists of the epithelium that secrete mucus (contains the glands and the gastric pits) and the lamina propria
• Submuscosa- consists of fibrous connective tissue
• Muscularis externa-consists of three layers, responsible for movement and break down of the food
• Serosa-consists of connective tissue continuous with the peritoneum.