File:Mucosa.jpg

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Description
English:
Title Mucosa
Description Line drawing showing the lining of the GI tract: colorectal (muscularis). The walls of the digestive tract have four layers of tissue: mucosa, submucosa, muscularis externa and serosa. The inner-most layer is the mucosa, a membrane that forms a continuous lining of the GI tract from the mouth to the anus. In the large bowel, this tissue contains cells that produce mucus to lubricate and protect the smooth inner surface of the bowel wall. Connective tissue and muscle separate the muscosa from the second layer, the submucosa, which contains blood vessels, lymph vessels, nerves and mucus-producing glands. Next to the submucosa is the muscularis externa, consisting of two layers of muscle fibers-one that runs lengthwise and one that encircles the bowel. The fourth layer, the serosa, is a thin membrane that produces fluid to lubricate the outer surface of the bowel so that it can slide against adjacent organs.
Topics/Categories Anatomy -- Digestive/Gastrointestinal System
Type B&W, Medical Illustration
Source National Cancer Institute
Date Unknown date
Unknown date
Source
This image was released by the National Cancer Institute, an agency part of the National Institutes of Health, with the ID 1781 (image) (next).

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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Author Unknown Illustrator
Permission
(Reusing this file)		 Reuse Restrictions None - This image is in the public domain and can be freely reused. Please credit the source and/or author listed above.
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File:Mucosa-fr.jpg

Licensing

Public domain This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
Please ensure that this image was actually created by the US Federal government. The NIH frequently uses commercial images which are not public domain.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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Date/TimeThumbnailDimensionsUserComment
current15:05, 21 January 2013Thumbnail for version as of 15:05, 21 January 20132,147 × 1,800 (1.27 MB)wikimediacommons>Fæ{{Information |Description = {{en|<br> :'''Title''' Mucosa :'''Description''' Line drawing showing the lining of the GI tract: colorectal (muscularis). The walls of the digestive tract have four layers of tissue: mucosa, submucosa, muscularis externa a...

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