Assessment of intestinal transit

A second major function of the intestinal tract depends on its contractility. Intestinal motility is responsible for appropriate mixing of ingested materials with endogenous secretions required for digeshon and for appropriate delivery of substances to the site of absorption elimination. 

A technique developed by Summer et al. [10] permits investigation of intestinal transit in animals by administering markers into the duodenum. This procedure allows interpretation of effects on intestinal transit without any influence of gastric emptying. Permanent, indwelling catheters 

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