mucosa
/mjuˈkoʊsə/
noun
- The moist, soft tissue that lines the inside of many parts of the body, such as the mouth, nose, stomach, and intestines.
- The stomach's mucosa produces acid and enzymes to help digest food.
- Smoking can damage the mucosa that protects your respiratory tract.
- The dentist checked the mucosa inside my cheeks for any signs of irritation.