Question at position 34 Intestinal juice is secreted in response to chyme or ______ of the small intestine.DistentionInfectionContractionFolding

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BlackTom AI · Accepted Answer

The question asks which stimulus of the small intestine promotes the secretion of intestinal juice when chyme is present. 
Option 1: Distention. This aligns with physiology: the presence of chyme causes distention of the intestinal wall, which stimulates mucosal glands to release intestinal juice as part of digestion. 
Option 2: Infection. While infection can affect intestinal function, it is not the normal stimulus for secreting intestinal juice in response to chyme; infection is not a typical physiological trigger for this secretion. 
Option 3: Contraction. Contraction refers to the movement of the gut (peristalsis or segmentation), not the triggering stimulus for juice secretion in response to chyme. The secretion is more directly driven by luminal contents and distension rather than by contractions themselves. 
Option 4: Folding. Folding describes the structural aspect of the mucosa (plicae, villi) and is not a primary stimulus for secretory response to chyme in this context. 
In summary, distention is the physiologically appropriate stimulus among the options, whereas infection, contraction, and folding do not correctly explain the secretion of intestinal juice in response to chyme.

Question at position 34 Intestinal juice is secreted in response to chyme or ______ of the small intestine.DistentionInfectionContractionFolding

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