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What are mucous membranes?

Mucous membranes are moist tissues that contain mucous glands. These membranes line and protect many body parts including the nose, eyelids, mouth, lungs, vagina, urinary tract and digestive tract. The mucous glands within the membranes release a thick fluid called mucus, which helps to keep the membranes moist. The mucus also helps trap bacteria and other disease-causing pathogens and prevent them from infecting the body.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.