Submucosa
The submucosa (or tela submucosa) is a thin layer of tissue in various organs of the gastrointestinal, respiratory, and genitourinary tracts. It is the layer of dense irregular connective tissue that supports the mucosa (mucous membrane) and joins it to the muscular layer, the bulk of overlying smooth muscle (fibers running circularly within layer of longitudinal muscle).
| Submucosa | |
|---|---|
Endoscopy and radial endoscopic ultrasound images of submucosal tumour in mid-esophagus. The submucosa is seen as a dark ring on the ultrasound image. | |
| Details | |
| Identifiers | |
| Latin | tela submucosa |
| TA98 | A05.3.01.028 A05.4.01.014 A05.5.01.026 A05.6.01.008 A05.7.01.005 A06.4.02.028 A08.3.01.022 |
| TA2 | 2857, 2891, 2913, 2939, 2967, 3221, 3234, 3419 |
| FMA | 85391 |
| Anatomical terminology | |
The submucosa (sub- + mucosa) is to a mucous membrane what the subserosa (sub- + serosa) is to a serous membrane.
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