New data on the work of the alimentary canal. Pr. Med. 1932, 19. Ramond

Various substances introduced into the vein of the dog (met. Blue, sodium, salic., Bromine, mercury, etc.) begin to be released after 5 minutes of the gastric mucosa, duodeni and coeco-appendicular'floro area. The rest of the intestines are not secreted. The selection ends at 30-40. After 15 after the introduction into the vein, absorption begins by those parts of the intestine that are not secreted. Suction continues 50 '. With such a double passage, there is a change in the excreted and absorbed substances.