Anatomía funcional da tela submucosa da valva ileocecal no homem adulto / Functional anatomy of submucose tissue of the human adult ileocecal valve

ABSTRACT

The collagen and elastic fibres of the tela submucosa and their relationships with the tunica muscularis in the human ileocecal valve were studied in 61 anatomic sepecimens of adult individuals, using meso-and-microscopical technics. Two fibrous compnents were described one intrafascicular, which arises from the muscular bundles, and another, interfascicular, which coming from the connective intermuscular layer of the tunica muscularis, pass between the annular bundles toward the tela submucosa. In the tela of the terminal ileum these fibrous component form, like the muscular bundles of the annular layer, a "polar" system. A system of muscular - leastic - collaten bundles is described in these two last portions, extending from the tunica muscularis toward the tela sub-mucosa. Two patherns of arrangements were observed in the tela submucosa one lamellar, and another areolar. A morphometric study was perfomed in order to estimate the distribution of fat cells in the tela submucosa of the ileocecal valve. It revealed a gradual increase of fat cells amount toward the apex and cecocolic aspect of the papilla ilealis