mucosa
noun [ C ] medical specialized uk/mjuːˈkəʊ.sə/ us/mjuːˈkoʊ.sə/ (also mucous membrane)
粘膜
the thin skin that covers the inside surface of parts of the body such as the nose and mouth and produces mucus to protect them
gastric mucosa 胃粘膜
oral mucosa 口腔粘膜