Which of the following procedures would be needed to demonst

Which of the following procedures would be needed to demonstrate that hormonal stimuli cause bile to flow into the small intestin?

a. Observation of the increasing acidity of the contents of the stomach.

b. Cutting nerves leding to the stomach

c. cutting nerves leading from the stomach

d. cutting nerves leading to the liver

e. cutting blood vessels leading to the liver

Solution

Here the option \'e\' is correct. The fatty acids in the lumen of the duodenum activates endocrine cells to release the hormone cholesystokinine. This cholesystokinine contacts the gall bladder and relax the sphincter of Oddi due to which bile secrets into intestine. This cholesystokinine is endocrine hormone and travels to the gall bladder and sphincter of Oddi through blood vessels leading to the liver. By cutting these blood vessels it can be demonstrated that hormonal stimuli cause bile to flow into the small intestine. Hence the option \'e\' is correct.