"Mucous membranes" refer to the soft, thin tissues that line certain parts of the body, such as the inside of the nose, mouth, and lungs. These membranes help keep these areas moist and protect them from irritants and infections. Full definition
It works by allowing heat from the hottest part of the body, the inner thorax, to escape through moisture produced by mucous membranes of the tongue, mouth, and throat. (cathealth.com)
In both speech and singing, we produce sustained vowel sounds by using vibrations of our vocal folds — small flaps of mucous membrane in our voice box (or Adams apple)-- that periodically interrupt the airflow from the lungs. (scientificamerican.com)
They observe the patient for mucous membrane color and quality of respirations, and use state - of - the - art monitoring equipment to measure levels of oxygen, carbon dioxide, blood pressure, and activity of the heart. (ivghospitals.com)