Question
Which one of the following is a local hormone?
-
Insulin
-
Gastrin
-
Adrenaline
-
Oxytocin.
Answer
(b) Gastrin
Explanation:
Gastrin is a local hormone. Gastrin is a peptide hormone that is secreted by G-cells in the stomach and duodenum in response to the presence of food. Gastrin stimulates the secretion of gastric acid by parietal cells in the stomach, as well as the proliferation of gastric mucosal cells.