The stimulus that leads to secretion of GLP-1 and GIP from endocrine of the small intestine and resulting secretion of insulin is:
a. The presence of carbohydrates in the gastrointestinal tract
b. An increase in plasma amino acids
c. An increase in plasma glucose
d. The distention of the gastrointestinal tract wall O e. All of the above
a. The presence of carbohydrates in the gastrointestinal tract
b. An increase in plasma amino acids
c. An increase in plasma glucose
d. The distention of the gastrointestinal tract wall O e. All of the above