Which one of the following is the primary site of production of gastrin: (A) Pylorus, (B) Antrum, (C) Pancreas, (D) Small intestine
Answer is B. Gastrin secreted by
-        G cells in the antral and duodenal mucosa.
-        TG cells in stomach and ileum
-        Pituitary, brain and nerves
-        Pancreatic islets in the fetus