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Encyclopedia > Mucous membranes

The mucous membranes (or mucosa) are linings of ectodermic origin, covered in epithelium, that line various body cavities and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genitourinary area, and the anus. The viscid secretion of the mucous membranes is termed mucus (note the spelling difference).


Body cavities featuring mucous membrane include most of the respiratory tract, the entire gastrointestinal tract, including the rectum, the urethra, and various other organs. In addition, the vagina, the clitoris, the covering of the glans penis (head of the penis) and the inside of the prepuce (foreskin) is mucous membrane, not skin.


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  Results from FactBites:
 
Mucous membrane - Wikipedia, the free encyclopedia (185 words)
The mucous membranes (or mucosae; singular: mucosa) are linings of ectodermic origin, covered in epithelium, and are involved in absorption and secretion.
The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus (note the spelling difference).
The term 'mucous membrane' refers to where they are found in the body and not every mucous membrane secretes mucus.
Mucous membrane plasmacytosis: A case report and review of the literature (2957 words)
Mucous membrane plasmacytosis is a rare, idiopathic condition consisting of a dense plasma-cell infiltrate of the mucous membranes.
Mucous membrane plasmacytosis of the upper aerodigestive tract is a rare, benign disorder in which the mucous membranes are infiltrated by plasma cells.
Mucous membrane lesions are present in one-third of patients with secondary syphilis, and histology can show superficial and deep perivascular infiltrate of plasma cells, lymphocytes and macrophages distributed in a bandlike pattern in the dermis, accompanied by psoriasiform epidermal hyperplasia and hyperkeratosis [28].
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