A mucous membrane, also called a mucosa, is a soft, pink skin-like layer that lines many of the cavities and tubes in the body, including the respiratory tract, gastrointestinal tract, the urinary and genital passages, and eyelids. Mucous membranes secrete a fluid containing mucus which keeps body structures moist and well-lubricated. The fluid is produced and released on to the surface of the mucous membrane by millions of specialized cells, called goblet cells, situated within the membrane.
Related category• ANATOMY AND PHYSIOLOGY
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