mucosa

https://doi.org/10.1351/goldbook.13473
Moist tissue that lines some organs and body cavities, including the nose, mouth, lungs, and digestive tract.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1215 [Terms] [Paper]