Structure and innervation of the musculature at the gastroduodenal junction of the guinea-pig.

摘要: The musculature of the pylorus guinea-pig consists a conspicuous ring circular musculature. On one side, this tissue is apposed to muscle layer duodenum, complete septum connective intervening between two muscles. other it in continuity with gastric antrum. Bundles longitudinal muscle, running close submucosa antrum, form loop and contribute pylorus. subserosal antrum continues into duodenum. density innervation, i.e. number bundles, axons percentage varicosities per unit sectional area or cell profiles (estimated on large photographic montages transversely sectioned muscles) higher than lowest In duodenum nerve bundles occur both layer; majority are situated bulk special cells adjacent submucosa.