The Wall of Which Structure Secretes Cholecystokinin

Question

The wall of which structure secretes cholecystokinin?
A) Stomach
B) Pylorus
C) Duodenum
D) Cecum

Accepted Answer

Cholecystokinin is secreted by the wall of the duodenum, which is the first part of the small intestine. It plays a role in stimulating the release of pancreatic enzymes and bile from the gallbladder.