View the animation below, then complete the quiz to test your knowledge of the concept.

1	Which of the following does NOT stimulate the secretion of HCl in the stomach?
	A)	the smell of food
	B)	the taste of food
	C)	the distention of the stomach as it fills with food
	D)	secretin
	E)	all of the above stimulate secretion of HCl in the stomach
2	Secretin is released from the duodenum in response to
	A)	hydrochloric acid in chyme.
	B)	sodium hydroxide in chyme.
	C)	the hormone gastrin.
	D)	partially digested protein.
	E)	partially digested carbohydrate.
3	Which of the following hormones is produced by the stomach?
	A)	insulin
	B)	secretin
	C)	pepsin
	D)	trypsin
	E)	chymotrypsin
4	When chyme enters the duodenum, gastric secretion increases.
	A)	True
	B)	False
5	Gastrin functions to increase the production of HCl in the stomach.
	A)	True
	B)	False