muscularis mucosae


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Related to muscularis mucosae: submucosa, submucosal plexus, Muscularis externa

muscularis mucosae

[‚məs·kyə′lar·əs myü′kō·sē]
(histology)
Thin, deep layer of smooth muscle in some mucous membranes, as in the digestive tract.
References in periodicals archive ?
Intestinal histomorphometry were quantified with the use of the Motic Images Plus 2.0 software (Motic China Group Co, Fujian, China).The villus height and width, crypt depth and area, and muscularis mucosae thickness were calculated for each intestinal image.
Pathology revealed a low-grade papillary urothelial neoplasm with no definite invasion into the muscularis mucosae. Also reported was a large inverted component, the presence of small nests of urothelial cells in the stalk, and the strong staining for CK5 and CD44.
Flowever, yersiniosis is not associated with chronic mucosal changes as mucosal cobblestoning, thick muscularis mucosae, neural hyperplasia and crypt distortion.
We particularly aimed to analyze the disposition of the muscularis mucosae, submucosal vascular density, and the degree of submucosal fibrosis and compare between both types.
The gastrointestinal polyps in PJS are hamartomatous polyps and the characteristic histologic finding is a smooth muscle core arising from muscularis mucosae which branches into the substance of polyp.
It recommends that at least five biopsy specimens (two from the greater and lesser curvatures of the corpus, one from the incisura angularis and two from the larger and lesser curvatures of the antrum) with mucosa and muscularis mucosae represented in each biopsy be evaluated.
Histologically, of the 511 tumors, there were 289 tubular adenomas (56.6%), 120 mucosal cancers (23.5%), 39 SM1 cancers (7.6%), 20 SM invasions 1000 [micro]m or more from the muscularis mucosae (SM2) or deeper (3.9%), and 43 serrated or nonneoplastic lesions (8.4%) in Group A.
We did not observe the muscularis mucosae. The submucosa is compounded by moderately dense connective tissue, presenting cells with acidophilic granules.
This mucosal regeneration may lead to hypertrophy of the muscularis mucosae. (69,70) Contraction of this hypertrophic muscle layer gives the colon the lead pipe-like narrowed, ahaustral, and foreshortened appearance (Figure 25).
Figure 3C showed that the labeled cells were both negative in the lamina muscularis mucosae and muscular layer.
Movement of spermatozoa through the head and body of the epididymis is facilitated by rhythmic contractions of the lamina muscularis mucosae. In contrast, the tail remains quiescent unless the male becomes sexually excited.
Los conductos deferentes, en su trayecto intra-peniano, estan compuestos por una tunica mucosa revestida de epitelio cilindrico estratificado, sustentado por un corion compuesto de tejido conectivo denso no modelado, entremezclado con fibras musculares lisas de la lamina muscularis mucosae dispersa.