A patient is diagnosed with problems in emptying the gallbladder. On a blood checkup, one hormone/ peptide that is known to stimulate gallbladder contraction is inappropriately low. Which of the following hormones is most likely deficient leading to the observed symptoms?
A) cholecystokinin
B) gastrin
C) GLP-1
D) pancreatic polypeptide
E) peptide tyrosine tyrosine (PYY)

Question

Quizplus · Accepted Answer

Cholecystokinin (CCK) is the hormone responsible for stimulating gallbladder contraction and bile release. A deficiency in CCK would lead to problems in emptying the gallbladder.  Cholecystokinin (CCK) is secreted from enteroendocrine I cells, predominantly of the duodenum, jejunum, following the consumption of food. The primary digestive effects of CCK are to stimulate gallbladder contraction and bile flow and increase secretion of digestive enzymes from the pancreas.

A Patient Is Diagnosed with Problems in Emptying the Gallbladder