Which of the Following is Not a Major Component of Gastric

Question

Which of the following is not a major component of gastric juices?
A) Intrinsic factor
B) Pepsinogen
C) Hydrochloric acid
D) Secretin
E) Mucus

Accepted Answer

Secretin is a hormone produced by the S cells of the duodenum, not a component of gastric juices. It functions to regulate the pH of the duodenum by inhibiting gastric acid secretion and stimulating bicarbonate production in the pancreas.