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Mucous membrane
Protective layer which lines the interior of hollow organs / From Wikipedia, the free encyclopedia
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A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. It consists of one or more layers of epithelial cells overlying a layer of loose connective tissue. It is mostly of endodermal origin and is continuous with the skin at body openings such as the eyes, eyelids, ears, inside the nose, inside the mouth, lips, the genital areas, the urethral opening and the anus. Some mucous membranes secrete mucus, a thick protective fluid. The function of the membrane is to stop pathogens and dirt from entering the body and to prevent bodily tissues from becoming dehydrated.
![]() | This article about biology may be excessively human-centric. (May 2022) |
Mucous membrane | |
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![]() Histological section taken from the gastric antrum, showing the mucosa of the stomach | |
Details | |
Identifiers | |
Latin | tunica mucosa |
MeSH | D009092 |
TA98 | A05.4.01.015 A05.3.01.029 A05.5.01.029 A05.6.01.009 A05.6.01.010 A05.7.01.006 A05.7.01.007 A05.8.02.009 A06.1.02.017 A06.2.09.019 A06.3.01.010 A06.4.02.029 A08.1.05.011 A08.2.01.007 A08.3.01.023 A09.1.02.013 A09.1.04.011 A09.2.03.012 A09.3.05.010 A09.3.06.004 A09.4.02.015 A09.4.02.020 A09.4.02.029 A15.3.02.083 |
Anatomical terms of microanatomy |