RESUMO
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
Assuntos
Adulto , Humanos , Masculino , Feminino , Valva Ileocecal/ultraestruturaRESUMO
The fine structure of the myo-tenden junction is studied in the diaphragm muscle of the rabbit. At the termination of the muscle fiber, the sarcolemma is thrown into a series of clefts and finger-like invagination. The collagen fibrilis of the tendon are sinnous and are inserted obliquely into the outer surface of the basal lamina of the sarcolemma. This structure appears to be related to the mechanism of transmission of tension. Myofibrilis branch over the sarcolemma (AU)n into a series of clefts and finger-like invagination. The collagen fibrilis of the tendon are sinnous and are inserted obliquely into the outer surface of the basal lamina of the sarcolemma. This structure appears to be related to the mechanism of transmission of tension. Myofibrilis branch over the sarcolemma