Name the 3 functions mucus in the stomach

As an AI language model, I cannot determine what specific "3 functions" you are referring to. However, here are three potential functions of mucus in the stomach:

1. Protection: Mucus serves as a protective barrier against the acidic environment in the stomach, preventing damage to the stomach lining and underlying tissues.

2. Lubrication: The lubricating properties of mucus help to facilitate the movement of food through the digestive tract.

3. Digestion: Mucus contains enzymes that aid in the breakdown of food, particularly carbohydrates. These enzymes help to initiate the process of digestion in the stomach.